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VS compiler warnings "warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data" #3677

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StrikerRUS opened this issue Dec 24, 2020 · 4 comments · Fixed by #3678 or #3729
Closed

VS compiler warnings "warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data" #3677

StrikerRUS opened this issue Dec 24, 2020 · 4 comments · Fixed by #3678 or #3729

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@StrikerRUS
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Huge number of such warnings.

Looks like these warnings were introduced in #3299.

Log 
2020-12-24T06:07:55.5113998Z Mode                LastWriteTime         Length Name                                                                  
2020-12-24T06:07:55.5129842Z ----                -------------         ------ ----                                                                  
2020-12-24T06:07:55.5246218Z d-----       12/24/2020   6:07 AM                build                                                                 
2020-12-24T06:07:56.2305993Z -- Building for: Visual Studio 15 2017
2020-12-24T06:08:05.8571898Z -- The C compiler identification is MSVC 19.16.27045.0
2020-12-24T06:08:07.6934605Z -- The CXX compiler identification is MSVC 19.16.27045.0
2020-12-24T06:08:07.8977682Z -- Detecting C compiler ABI info
2020-12-24T06:08:09.8886091Z -- Detecting C compiler ABI info - done
2020-12-24T06:08:09.8944417Z -- Check for working C compiler: C:/Program Files (x86)/Microsoft Visual Studio/2017/Enterprise/VC/Tools/MSVC/14.16.27023/bin/Hostx86/x64/cl.exe - skipped
2020-12-24T06:08:09.9045225Z -- Detecting C compile features
2020-12-24T06:08:09.9212050Z -- Detecting C compile features - done
2020-12-24T06:08:09.9607032Z -- Detecting CXX compiler ABI info
2020-12-24T06:08:11.3276386Z -- Detecting CXX compiler ABI info - done
2020-12-24T06:08:11.3306452Z -- Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual Studio/2017/Enterprise/VC/Tools/MSVC/14.16.27023/bin/Hostx86/x64/cl.exe - skipped
2020-12-24T06:08:11.3318176Z -- Detecting CXX compile features
2020-12-24T06:08:11.3335239Z -- Detecting CXX compile features - done
2020-12-24T06:08:15.5903390Z -- Found OpenMP_C: -openmp (found version "2.0") 
2020-12-24T06:08:17.1191109Z -- Found OpenMP_CXX: -openmp (found version "2.0") 
2020-12-24T06:08:17.1192824Z -- Found OpenMP: TRUE (found version "2.0")  
2020-12-24T06:08:17.1327635Z -- Performing Test MM_PREFETCH
2020-12-24T06:08:18.1232688Z -- Performing Test MM_PREFETCH - Failed
2020-12-24T06:08:18.1248807Z -- Performing Test MM_MALLOC
2020-12-24T06:08:19.5095778Z -- Performing Test MM_MALLOC - Failed
2020-12-24T06:08:19.5158816Z -- Configuring done
2020-12-24T06:08:19.6774922Z -- Generating done
2020-12-24T06:08:19.6810335Z -- Build files have been written to: D:/a/1/s/build
2020-12-24T06:08:19.8840248Z Microsoft (R) Build Engine version 15.9.21+g9802d43bc3 for .NET Framework
2020-12-24T06:08:19.8841904Z Copyright (C) Microsoft Corporation. All rights reserved.
2020-12-24T06:08:19.8842727Z 
2020-12-24T06:08:20.4515631Z   Checking Build System
2020-12-24T06:08:20.6578476Z   Building Custom Rule D:/a/1/s/CMakeLists.txt
2020-12-24T06:08:20.9646883Z   boosting.cpp
2020-12-24T06:08:20.9651112Z   gbdt.cpp
2020-12-24T06:08:20.9673224Z   gbdt_model_text.cpp
2020-12-24T06:08:20.9712874Z   gbdt_prediction.cpp
2020-12-24T06:08:23.5654097Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:23.5665982Z           with
2020-12-24T06:08:23.5666735Z           [
2020-12-24T06:08:23.5669211Z               _Ty=double
2020-12-24T06:08:23.5670008Z           ]
2020-12-24T06:08:23.5671752Z           and
2020-12-24T06:08:23.5675003Z           [
2020-12-24T06:08:23.5746315Z               _Ty=LightGBM::label_t
2020-12-24T06:08:23.5747703Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt_prediction.cpp)
2020-12-24T06:08:23.5749703Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:23.5751083Z           with
2020-12-24T06:08:23.5751952Z           [
2020-12-24T06:08:23.5752726Z               _Ty=double
2020-12-24T06:08:23.5753684Z           ]
2020-12-24T06:08:23.5754411Z           and
2020-12-24T06:08:23.5755866Z           [
2020-12-24T06:08:23.5756750Z               _Ty=LightGBM::label_t
2020-12-24T06:08:23.5758285Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt_model_text.cpp)
2020-12-24T06:08:23.5760852Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:23.5763289Z           with
2020-12-24T06:08:23.5764193Z           [
2020-12-24T06:08:23.5765099Z               _Ty2=double
2020-12-24T06:08:23.5765945Z           ]
2020-12-24T06:08:23.5766753Z           and
2020-12-24T06:08:23.5767557Z           [
2020-12-24T06:08:23.5770124Z               _Ty=LightGBM::label_t
2020-12-24T06:08:23.5771475Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt_prediction.cpp)
2020-12-24T06:08:23.5773074Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:23.5774432Z           with
2020-12-24T06:08:23.5775185Z           [
2020-12-24T06:08:23.5776070Z               _Ty2=double
2020-12-24T06:08:23.5776895Z           ]
2020-12-24T06:08:23.5777780Z           and
2020-12-24T06:08:23.5779027Z           [
2020-12-24T06:08:23.5779904Z               _Ty=LightGBM::label_t
2020-12-24T06:08:23.5781113Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt_model_text.cpp)
2020-12-24T06:08:23.5782546Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:23.5783896Z           with
2020-12-24T06:08:23.5784802Z           [
2020-12-24T06:08:23.5785662Z               _Ty=LightGBM::label_t
2020-12-24T06:08:23.5786753Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt_prediction.cpp)
2020-12-24T06:08:23.5788123Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:23.5789856Z           with
2020-12-24T06:08:23.5790759Z           [
2020-12-24T06:08:23.5793118Z               _Ty=LightGBM::label_t
2020-12-24T06:08:23.5794514Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt_model_text.cpp)
2020-12-24T06:08:23.5803973Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:23.5805362Z           with
2020-12-24T06:08:23.5806049Z           [
2020-12-24T06:08:23.5806812Z               _Ty=double
2020-12-24T06:08:23.5807475Z           ]
2020-12-24T06:08:23.5807978Z           and
2020-12-24T06:08:23.5808350Z           [
2020-12-24T06:08:23.5809422Z               _Ty=LightGBM::label_t
2020-12-24T06:08:23.5875565Z           ] (compiling source file D:\a\1\s\src\boosting\boosting.cpp)
2020-12-24T06:08:23.6013677Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:23.6015836Z           with
2020-12-24T06:08:23.6030841Z           [
2020-12-24T06:08:23.6031271Z               _Ty=double
2020-12-24T06:08:23.6031772Z           ]
2020-12-24T06:08:23.6055128Z           and
2020-12-24T06:08:23.6055916Z           [
2020-12-24T06:08:23.6056584Z               _Ty=LightGBM::label_t
2020-12-24T06:08:23.6064679Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt.cpp)
2020-12-24T06:08:23.6066022Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:23.6066934Z           with
2020-12-24T06:08:23.6067445Z           [
2020-12-24T06:08:23.6067859Z               _Ty2=double
2020-12-24T06:08:23.6068383Z           ]
2020-12-24T06:08:23.6069075Z           and
2020-12-24T06:08:23.6072384Z           [
2020-12-24T06:08:23.6073105Z               _Ty=LightGBM::label_t
2020-12-24T06:08:23.6074288Z           ] (compiling source file D:\a\1\s\src\boosting\boosting.cpp)
2020-12-24T06:08:23.6075564Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:23.6076868Z           with
2020-12-24T06:08:23.6077551Z           [
2020-12-24T06:08:23.6078163Z               _Ty2=double
2020-12-24T06:08:23.6079040Z           ]
2020-12-24T06:08:23.6079560Z           and
2020-12-24T06:08:23.6081825Z           [
2020-12-24T06:08:23.6082654Z               _Ty=LightGBM::label_t
2020-12-24T06:08:23.6084943Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt.cpp)
2020-12-24T06:08:23.6612817Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:23.6614097Z           with
2020-12-24T06:08:23.6617664Z           [
2020-12-24T06:08:23.6618425Z               _Ty=LightGBM::label_t
2020-12-24T06:08:23.6619719Z           ] (compiling source file D:\a\1\s\src\boosting\boosting.cpp)
2020-12-24T06:08:23.6624375Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:23.6626663Z           with
2020-12-24T06:08:23.6627830Z           [
2020-12-24T06:08:23.6630135Z               _Ty=LightGBM::label_t
2020-12-24T06:08:23.6634338Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt.cpp)
2020-12-24T06:08:27.6745981Z   prediction_early_stop.cpp
2020-12-24T06:08:29.6700902Z   bin.cpp
2020-12-24T06:08:33.0764834Z   config.cpp
2020-12-24T06:08:34.1471055Z   config_auto.cpp
2020-12-24T06:08:34.7560934Z   dataset.cpp
2020-12-24T06:08:36.6941963Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:36.6943891Z           with
2020-12-24T06:08:36.8601355Z           [
2020-12-24T06:08:37.0492606Z               _Ty=double
2020-12-24T06:08:37.2401485Z           ]
2020-12-24T06:08:37.4290793Z           and
2020-12-24T06:08:37.4681332Z           [
2020-12-24T06:08:37.6703683Z               _Ty=LightGBM::label_t
2020-12-24T06:08:37.6714078Z           ] (compiling source file D:\a\1\s\src\io\dataset.cpp)
2020-12-24T06:08:37.6715738Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:37.6718005Z           with
2020-12-24T06:08:37.6718959Z           [
2020-12-24T06:08:37.6719678Z               _Ty2=double
2020-12-24T06:08:37.6720815Z           ]
2020-12-24T06:08:37.6721462Z           and
2020-12-24T06:08:37.6722154Z           [
2020-12-24T06:08:37.6722858Z               _Ty=LightGBM::label_t
2020-12-24T06:08:37.6723828Z           ] (compiling source file D:\a\1\s\src\io\dataset.cpp)
2020-12-24T06:08:37.6725265Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:37.6726390Z           with
2020-12-24T06:08:37.6727131Z           [
2020-12-24T06:08:37.6727860Z               _Ty=LightGBM::label_t
2020-12-24T06:08:37.6728835Z           ] (compiling source file D:\a\1\s\src\io\dataset.cpp)
2020-12-24T06:08:42.5037588Z   dataset_loader.cpp
2020-12-24T06:08:47.7722603Z   file_io.cpp
2020-12-24T06:08:49.0999914Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:49.1903007Z           with
2020-12-24T06:08:49.5894648Z           [
2020-12-24T06:08:49.7815761Z               _Ty=double
2020-12-24T06:08:50.2189084Z           ]
2020-12-24T06:08:50.4371059Z           and
2020-12-24T06:08:51.0462224Z           [
2020-12-24T06:08:51.5112239Z               _Ty=LightGBM::label_t
2020-12-24T06:08:51.7544325Z           ] (compiling source file D:\a\1\s\src\io\dataset_loader.cpp)
2020-12-24T06:08:52.3143444Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:52.7082329Z           with
2020-12-24T06:08:52.7761766Z           [
2020-12-24T06:08:52.9523190Z               _Ty2=double
2020-12-24T06:08:52.9524576Z           ]
2020-12-24T06:08:52.9525073Z           and
2020-12-24T06:08:52.9525586Z           [
2020-12-24T06:08:52.9526194Z               _Ty=LightGBM::label_t
2020-12-24T06:08:52.9526982Z           ] (compiling source file D:\a\1\s\src\io\dataset_loader.cpp)
2020-12-24T06:08:52.9528917Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:52.9530882Z           with
2020-12-24T06:08:52.9532796Z           [
2020-12-24T06:08:52.9534658Z               _Ty=LightGBM::label_t
2020-12-24T06:08:52.9535599Z           ] (compiling source file D:\a\1\s\src\io\dataset_loader.cpp)
2020-12-24T06:08:52.9537175Z D:\a\1\s\src\io\dataset_loader.cpp(1129): warning C4267: 'argument': conversion from 'size_t' to 'int', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:52.9797729Z D:\a\1\s\src\io\dataset_loader.cpp(1167): warning C4244: '=': conversion from '_Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:52.9802345Z           with
2020-12-24T06:08:53.1735679Z           [
2020-12-24T06:08:53.3635508Z               _Ty2=double
2020-12-24T06:08:53.3872383Z           ]
2020-12-24T06:08:53.4902980Z           and
2020-12-24T06:08:53.5836224Z           [
2020-12-24T06:08:53.6496661Z               _Ty=LightGBM::label_t
2020-12-24T06:08:53.6498512Z           ]
2020-12-24T06:08:53.6499853Z D:\a\1\s\src\io\dataset_loader.cpp(1224): warning C4244: '=': conversion from '_Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:53.6501623Z           with
2020-12-24T06:08:53.6502470Z           [
2020-12-24T06:08:53.6503331Z               _Ty2=double
2020-12-24T06:08:53.6504338Z           ]
2020-12-24T06:08:53.6505227Z           and
2020-12-24T06:08:53.6506218Z           [
2020-12-24T06:08:53.6509342Z               _Ty=LightGBM::label_t
2020-12-24T06:08:53.6510577Z           ]
2020-12-24T06:08:53.6513478Z D:\a\1\s\src\io\dataset_loader.cpp(1297): warning C4244: '=': conversion from '_Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:53.6516492Z           with
2020-12-24T06:08:53.6517545Z           [
2020-12-24T06:08:53.6518443Z               _Ty2=double
2020-12-24T06:08:53.6519416Z           ]
2020-12-24T06:08:53.6520326Z           and
2020-12-24T06:08:53.6521295Z           [
2020-12-24T06:08:53.6522408Z               _Ty=LightGBM::label_t
2020-12-24T06:08:53.6524243Z           ]
2020-12-24T06:08:53.6525192Z   json11.cpp
2020-12-24T06:08:53.8540342Z   metadata.cpp
2020-12-24T06:08:53.8637210Z   parser.cpp
2020-12-24T06:08:56.6093163Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:56.8040680Z           with
2020-12-24T06:08:56.9429519Z           [
2020-12-24T06:08:56.9430742Z               _Ty=double
2020-12-24T06:08:56.9431300Z           ]
2020-12-24T06:08:56.9432834Z           and
2020-12-24T06:08:56.9434788Z           [
2020-12-24T06:08:56.9455817Z               _Ty=LightGBM::label_t
2020-12-24T06:08:56.9456986Z           ] (compiling source file D:\a\1\s\src\io\metadata.cpp)
2020-12-24T06:08:56.9458234Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:56.9459220Z           with
2020-12-24T06:08:56.9459791Z           [
2020-12-24T06:08:56.9460300Z               _Ty2=double
2020-12-24T06:08:56.9460925Z           ]
2020-12-24T06:08:56.9461487Z           and
2020-12-24T06:08:56.9462231Z           [
2020-12-24T06:08:56.9462775Z               _Ty=LightGBM::label_t
2020-12-24T06:08:56.9463816Z           ] (compiling source file D:\a\1\s\src\io\metadata.cpp)
2020-12-24T06:08:56.9465681Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:56.9466977Z           with
2020-12-24T06:08:56.9467554Z           [
2020-12-24T06:08:56.9468168Z               _Ty=LightGBM::label_t
2020-12-24T06:08:56.9470118Z           ] (compiling source file D:\a\1\s\src\io\metadata.cpp)
2020-12-24T06:08:57.2406337Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:57.2408458Z           with
2020-12-24T06:08:57.2409261Z           [
2020-12-24T06:08:57.2409821Z               _Ty=double
2020-12-24T06:08:57.2410529Z           ]
2020-12-24T06:08:57.2411653Z           and
2020-12-24T06:08:57.2414527Z           [
2020-12-24T06:08:57.3253464Z               _Ty=LightGBM::label_t
2020-12-24T06:08:57.3254620Z           ] (compiling source file D:\a\1\s\src\io\parser.cpp)
2020-12-24T06:08:57.3255571Z   train_share_states.cpp
2020-12-24T06:08:57.3257005Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:57.3258133Z           with
2020-12-24T06:08:57.3258823Z           [
2020-12-24T06:08:57.3259426Z               _Ty2=double
2020-12-24T06:08:57.3261044Z           ]
2020-12-24T06:08:57.3261940Z           and
2020-12-24T06:08:57.3262640Z           [
2020-12-24T06:08:57.3263286Z               _Ty=LightGBM::label_t
2020-12-24T06:08:57.3264228Z           ] (compiling source file D:\a\1\s\src\io\parser.cpp)
2020-12-24T06:08:57.3265420Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:08:57.3266598Z           with
2020-12-24T06:08:57.3267284Z           [
2020-12-24T06:08:57.3267957Z               _Ty=LightGBM::label_t
2020-12-24T06:08:57.3268848Z           ] (compiling source file D:\a\1\s\src\io\parser.cpp)
2020-12-24T06:09:07.6187255Z   tree.cpp
2020-12-24T06:09:07.6192624Z   dcg_calculator.cpp
2020-12-24T06:09:07.6342508Z   metric.cpp
2020-12-24T06:09:07.6343724Z   ifaddrs_patch.cpp
2020-12-24T06:09:07.6345355Z   linker_topo.cpp
2020-12-24T06:09:07.6346657Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:07.6349448Z           with
2020-12-24T06:09:07.6350258Z           [
2020-12-24T06:09:07.6363800Z               _Ty=double
2020-12-24T06:09:07.6364833Z           ]
2020-12-24T06:09:07.6368296Z           and
2020-12-24T06:09:07.6369470Z           [
2020-12-24T06:09:07.6373705Z               _Ty=LightGBM::label_t
2020-12-24T06:09:07.6374870Z           ] (compiling source file D:\a\1\s\src\io\tree.cpp)
2020-12-24T06:09:07.6923973Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:07.6925695Z           with
2020-12-24T06:09:07.7135104Z           [
2020-12-24T06:09:07.7698767Z               _Ty2=double
2020-12-24T06:09:07.7700648Z           ]
2020-12-24T06:09:07.7702576Z           and
2020-12-24T06:09:07.7703302Z           [
2020-12-24T06:09:07.7706453Z               _Ty=LightGBM::label_t
2020-12-24T06:09:07.7707559Z           ] (compiling source file D:\a\1\s\src\io\tree.cpp)
2020-12-24T06:09:07.7709823Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:07.7711115Z           with
2020-12-24T06:09:07.7713067Z           [
2020-12-24T06:09:07.7714009Z               _Ty=LightGBM::label_t
2020-12-24T06:09:07.7715638Z           ] (compiling source file D:\a\1\s\src\io\tree.cpp)
2020-12-24T06:09:07.7717485Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:07.7719584Z           with
2020-12-24T06:09:07.7720283Z           [
2020-12-24T06:09:07.7722138Z               _Ty=double
2020-12-24T06:09:07.7723069Z           ]
2020-12-24T06:09:07.7724451Z           and
2020-12-24T06:09:07.7725108Z           [
2020-12-24T06:09:07.7726453Z               _Ty=LightGBM::label_t
2020-12-24T06:09:07.7727374Z           ] (compiling source file D:\a\1\s\src\metric\dcg_calculator.cpp)
2020-12-24T06:09:07.7730198Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:07.7731475Z           with
2020-12-24T06:09:07.7732686Z           [
2020-12-24T06:09:07.7735388Z               _Ty2=double
2020-12-24T06:09:07.7736384Z           ]
2020-12-24T06:09:07.7737640Z           and
2020-12-24T06:09:07.7738284Z           [
2020-12-24T06:09:07.7739623Z               _Ty=LightGBM::label_t
2020-12-24T06:09:07.7740845Z           ] (compiling source file D:\a\1\s\src\metric\dcg_calculator.cpp)
2020-12-24T06:09:07.7743088Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:07.7744315Z           with
2020-12-24T06:09:07.7745583Z           [
2020-12-24T06:09:07.7746390Z               _Ty=LightGBM::label_t
2020-12-24T06:09:07.7748010Z           ] (compiling source file D:\a\1\s\src\metric\dcg_calculator.cpp)
2020-12-24T06:09:07.7749387Z D:\a\1\s\src\io\tree.cpp(382): warning C4267: '=': conversion from 'size_t' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:07.7751104Z           with
2020-12-24T06:09:07.7752196Z           [
2020-12-24T06:09:07.7753527Z               _Ty=int
2020-12-24T06:09:07.7754217Z           ]
2020-12-24T06:09:07.7755939Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:07.7757324Z           with
2020-12-24T06:09:07.7760528Z           [
2020-12-24T06:09:07.7761267Z               _Ty=double
2020-12-24T06:09:07.7763118Z           ]
2020-12-24T06:09:07.7763769Z           and
2020-12-24T06:09:07.7765089Z           [
2020-12-24T06:09:07.7765799Z               _Ty=LightGBM::label_t
2020-12-24T06:09:07.7767678Z           ] (compiling source file D:\a\1\s\src\metric\metric.cpp)
2020-12-24T06:09:07.7769053Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:07.7770813Z           with
2020-12-24T06:09:07.7771533Z           [
2020-12-24T06:09:07.7773148Z               _Ty2=double
2020-12-24T06:09:07.7773941Z           ]
2020-12-24T06:09:07.7775176Z           and
2020-12-24T06:09:07.7775894Z           [
2020-12-24T06:09:07.7777199Z               _Ty=LightGBM::label_t
2020-12-24T06:09:07.7778222Z           ] (compiling source file D:\a\1\s\src\metric\metric.cpp)
2020-12-24T06:09:07.7780049Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:07.7781154Z           with
2020-12-24T06:09:07.7782707Z           [
2020-12-24T06:09:07.7783464Z               _Ty=LightGBM::label_t
2020-12-24T06:09:07.7784984Z           ] (compiling source file D:\a\1\s\src\metric\metric.cpp)
2020-12-24T06:09:10.6211060Z   linkers_mpi.cpp
2020-12-24T06:09:10.6798904Z   linkers_socket.cpp
2020-12-24T06:09:11.4063129Z   network.cpp
2020-12-24T06:09:19.0212700Z   objective_function.cpp
2020-12-24T06:09:20.5989303Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:20.5998382Z           with
2020-12-24T06:09:20.5999206Z           [
2020-12-24T06:09:20.6004512Z               _Ty=double
2020-12-24T06:09:20.6005299Z           ]
2020-12-24T06:09:20.6005912Z           and
2020-12-24T06:09:20.6006569Z           [
2020-12-24T06:09:20.6007456Z               _Ty=LightGBM::label_t
2020-12-24T06:09:20.6008582Z           ] (compiling source file D:\a\1\s\src\objective\objective_function.cpp)
2020-12-24T06:09:20.6137945Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:20.6139378Z           with
2020-12-24T06:09:20.6140351Z           [
2020-12-24T06:09:20.6141193Z               _Ty2=double
2020-12-24T06:09:20.6142001Z           ]
2020-12-24T06:09:20.6142823Z           and
2020-12-24T06:09:20.6143656Z           [
2020-12-24T06:09:20.6144406Z               _Ty=LightGBM::label_t
2020-12-24T06:09:20.6145409Z           ] (compiling source file D:\a\1\s\src\objective\objective_function.cpp)
2020-12-24T06:09:20.6150466Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:20.6152098Z           with
2020-12-24T06:09:20.6152589Z           [
2020-12-24T06:09:20.6153046Z               _Ty=LightGBM::label_t
2020-12-24T06:09:20.6154247Z           ] (compiling source file D:\a\1\s\src\objective\objective_function.cpp)
2020-12-24T06:09:20.9357098Z   cuda_tree_learner.cpp
2020-12-24T06:09:20.9802720Z   data_parallel_tree_learner.cpp
2020-12-24T06:09:22.9644145Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:22.9646279Z           with
2020-12-24T06:09:23.1595353Z           [
2020-12-24T06:09:23.5603885Z               _Ty=double
2020-12-24T06:09:23.5605955Z           ]
2020-12-24T06:09:23.9445710Z           and
2020-12-24T06:09:24.0493847Z           [
2020-12-24T06:09:24.0778051Z               _Ty=LightGBM::label_t
2020-12-24T06:09:24.0781283Z           ] (compiling source file D:\a\1\s\src\treelearner\data_parallel_tree_learner.cpp)
2020-12-24T06:09:24.0783074Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:24.0784280Z           with
2020-12-24T06:09:24.0785178Z           [
2020-12-24T06:09:24.0785901Z               _Ty2=double
2020-12-24T06:09:24.0786540Z           ]
2020-12-24T06:09:24.0787242Z           and
2020-12-24T06:09:24.0787817Z           [
2020-12-24T06:09:24.0788402Z               _Ty=LightGBM::label_t
2020-12-24T06:09:24.0789383Z           ] (compiling source file D:\a\1\s\src\treelearner\data_parallel_tree_learner.cpp)
2020-12-24T06:09:24.0790844Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:24.0792034Z           with
2020-12-24T06:09:24.0792970Z           [
2020-12-24T06:09:24.0793588Z               _Ty=LightGBM::label_t
2020-12-24T06:09:24.0794549Z           ] (compiling source file D:\a\1\s\src\treelearner\data_parallel_tree_learner.cpp)
2020-12-24T06:09:25.2945431Z   feature_parallel_tree_learner.cpp
2020-12-24T06:09:28.1933612Z   gpu_tree_learner.cpp
2020-12-24T06:09:28.8579829Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:28.8584972Z           with
2020-12-24T06:09:28.8585998Z           [
2020-12-24T06:09:28.8586881Z               _Ty=double
2020-12-24T06:09:28.8590174Z           ]
2020-12-24T06:09:28.8591134Z           and
2020-12-24T06:09:28.8593291Z           [
2020-12-24T06:09:28.8594308Z               _Ty=LightGBM::label_t
2020-12-24T06:09:28.8595928Z           ] (compiling source file D:\a\1\s\src\treelearner\feature_parallel_tree_learner.cpp)
2020-12-24T06:09:28.8602303Z   linear_tree_learner.cpp
2020-12-24T06:09:28.9499116Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:28.9501490Z           with
2020-12-24T06:09:28.9503637Z           [
2020-12-24T06:09:28.9504757Z               _Ty2=double
2020-12-24T06:09:28.9506153Z           ]
2020-12-24T06:09:28.9507337Z           and
2020-12-24T06:09:28.9508432Z           [
2020-12-24T06:09:28.9509820Z               _Ty=LightGBM::label_t
2020-12-24T06:09:28.9530568Z           ] (compiling source file D:\a\1\s\src\treelearner\feature_parallel_tree_learner.cpp)
2020-12-24T06:09:28.9535514Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:28.9536724Z           with
2020-12-24T06:09:28.9538402Z           [
2020-12-24T06:09:28.9539186Z               _Ty=LightGBM::label_t
2020-12-24T06:09:28.9540786Z           ] (compiling source file D:\a\1\s\src\treelearner\feature_parallel_tree_learner.cpp)
2020-12-24T06:09:29.4283482Z   serial_tree_learner.cpp
2020-12-24T06:09:30.8274228Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:30.9034331Z           with
2020-12-24T06:09:30.9444946Z           [
2020-12-24T06:09:31.1374054Z               _Ty=double
2020-12-24T06:09:31.1726313Z           ]
2020-12-24T06:09:31.1780960Z           and
2020-12-24T06:09:31.1796433Z           [
2020-12-24T06:09:31.1797485Z               _Ty=LightGBM::label_t
2020-12-24T06:09:31.1800384Z           ] (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:09:31.1802398Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:31.1811047Z           with
2020-12-24T06:09:31.1812273Z           [
2020-12-24T06:09:31.2085768Z               _Ty2=double
2020-12-24T06:09:31.2087025Z           ]
2020-12-24T06:09:31.2090055Z           and
2020-12-24T06:09:31.2090875Z           [
2020-12-24T06:09:31.2096460Z               _Ty=LightGBM::label_t
2020-12-24T06:09:31.2097569Z           ] (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:09:31.2098934Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:31.2100032Z           with
2020-12-24T06:09:31.2100572Z           [
2020-12-24T06:09:31.2101241Z               _Ty=LightGBM::label_t
2020-12-24T06:09:31.2102057Z           ] (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:09:31.2104405Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:31.2107872Z           with
2020-12-24T06:09:31.2109940Z           [
2020-12-24T06:09:31.2111237Z               _Ty=double
2020-12-24T06:09:31.2111900Z           ]
2020-12-24T06:09:31.2114149Z           and
2020-12-24T06:09:31.2114746Z           [
2020-12-24T06:09:31.2115598Z               _Ty=LightGBM::label_t
2020-12-24T06:09:31.2116276Z           ] (compiling source file D:\a\1\s\src\treelearner\serial_tree_learner.cpp)
2020-12-24T06:09:31.2117602Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:31.2118693Z           with
2020-12-24T06:09:31.2119289Z           [
2020-12-24T06:09:31.2119750Z               _Ty2=double
2020-12-24T06:09:31.2120376Z           ]
2020-12-24T06:09:31.2123216Z           and
2020-12-24T06:09:31.2123907Z           [
2020-12-24T06:09:31.2124465Z               _Ty=LightGBM::label_t
2020-12-24T06:09:31.2125338Z           ] (compiling source file D:\a\1\s\src\treelearner\serial_tree_learner.cpp)
2020-12-24T06:09:31.2738463Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:31.2783272Z           with
2020-12-24T06:09:31.2784464Z           [
2020-12-24T06:09:31.3113253Z               _Ty=LightGBM::label_t
2020-12-24T06:09:31.3114781Z           ] (compiling source file D:\a\1\s\src\treelearner\serial_tree_learner.cpp)
2020-12-24T06:09:33.7644865Z d:\a\1\s\src\treelearner\linear_tree_learner.h(75): warning C4267: '=': conversion from 'size_t' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:33.7677392Z           with
2020-12-24T06:09:33.7678512Z           [
2020-12-24T06:09:33.7680161Z               _Ty=int
2020-12-24T06:09:33.7681301Z           ] (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:09:33.8164513Z   d:\a\1\s\src\treelearner\linear_tree_learner.h(54): note: see reference to function template instantiation 'void LightGBM::LinearTreeLearner::AddPredictionToScoreInner<true>(const LightGBM::Tree *,double *) const' being compiled (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:09:34.0054090Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(229): warning C4267: 'argument': conversion from 'size_t' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:34.2234082Z           with
2020-12-24T06:09:34.3804250Z           [
2020-12-24T06:09:34.3805376Z               _Ty=int
2020-12-24T06:09:34.3806199Z           ]
2020-12-24T06:09:34.3807758Z   D:\a\1\s\src\treelearner\linear_tree_learner.cpp(126): note: see reference to function template instantiation 'void LightGBM::LinearTreeLearner::CalculateLinear<true>(LightGBM::Tree *,bool,const LightGBM::score_t *,const LightGBM::score_t *,bool) const' being compiled
2020-12-24T06:09:34.3810095Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(231): warning C4267: '=': conversion from 'size_t' to 'int', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:34.3812007Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(238): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:34.3814077Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(245): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:34.3815972Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(293): warning C4244: '+=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:34.3817320Z           with
2020-12-24T06:09:34.3817972Z           [
2020-12-24T06:09:34.3818792Z               _Ty=LightGBM::label_t
2020-12-24T06:09:34.3819514Z           ]
2020-12-24T06:09:34.3820752Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(296): warning C4244: '+=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:34.3821974Z           with
2020-12-24T06:09:34.3822734Z           [
2020-12-24T06:09:34.3825294Z               _Ty=LightGBM::label_t
2020-12-24T06:09:34.3828583Z           ]
2020-12-24T06:09:34.3829764Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(309): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:34.3832574Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(342): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:38.9970469Z   tree_learner.cpp
2020-12-24T06:09:40.3950484Z   voting_parallel_tree_learner.cpp
2020-12-24T06:09:40.4377481Z C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.16.27023\include\xutility(2903): warning C4244: '=': conversion from 'const _Ty' to 'float', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:40.6264325Z           with
2020-12-24T06:09:40.8161262Z           [
2020-12-24T06:09:41.0053219Z               _Ty=int
2020-12-24T06:09:41.1151699Z           ] (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:09:41.1154873Z   C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.16.27023\include\xutility(2917): note: see reference to function template instantiation 'void std::_Fill_unchecked1<_FwdIt,_Ty>(_FwdIt,_FwdIt,const _Ty &,std::false_type)' being compiled
2020-12-24T06:09:41.1746158Z           with
2020-12-24T06:09:41.1747070Z           [
2020-12-24T06:09:41.1747702Z               _FwdIt=float *,
2020-12-24T06:09:41.1748413Z               _Ty=int
2020-12-24T06:09:41.1749180Z           ] (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:09:41.1751915Z   C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.16.27023\include\xutility(2925): note: see reference to function template instantiation 'void std::_Fill_unchecked<float*,_Ty>(_FwdIt,_FwdIt,const _Ty &)' being compiled
2020-12-24T06:09:41.1754981Z           with
2020-12-24T06:09:41.1755803Z           [
2020-12-24T06:09:41.1756335Z               _Ty=int,
2020-12-24T06:09:41.1757150Z               _FwdIt=float *
2020-12-24T06:09:41.1758033Z           ] (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:09:41.1759708Z   D:\a\1\s\src\treelearner\linear_tree_learner.cpp(239): note: see reference to function template instantiation 'void std::fill<std::_Vector_iterator<std::_Vector_val<std::_Simple_types<_Ty>>>,int>(_FwdIt,_FwdIt,const int &)' being compiled
2020-12-24T06:09:41.1761225Z           with
2020-12-24T06:09:41.1761839Z           [
2020-12-24T06:09:41.1762902Z               _Ty=LightGBM::label_t,
2020-12-24T06:09:41.1765895Z               _FwdIt=std::_Vector_iterator<std::_Vector_val<std::_Simple_types<LightGBM::label_t>>>
2020-12-24T06:09:41.1767004Z           ]
2020-12-24T06:09:41.1768483Z   D:\a\1\s\src\treelearner\linear_tree_learner.cpp(126): note: see reference to function template instantiation 'void LightGBM::LinearTreeLearner::CalculateLinear<true>(LightGBM::Tree *,bool,const LightGBM::score_t *,const LightGBM::score_t *,bool) const' being compiled
2020-12-24T06:09:41.1771420Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:41.1773053Z           with
2020-12-24T06:09:41.2055682Z           [
2020-12-24T06:09:41.3945039Z               _Ty=double
2020-12-24T06:09:41.5902114Z           ]
2020-12-24T06:09:41.7794147Z           and
2020-12-24T06:09:41.9715994Z           [
2020-12-24T06:09:42.1525130Z               _Ty=LightGBM::label_t
2020-12-24T06:09:42.1531063Z           ] (compiling source file D:\a\1\s\src\treelearner\tree_learner.cpp)
2020-12-24T06:09:42.1533035Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:42.1534270Z           with
2020-12-24T06:09:42.1535039Z           [
2020-12-24T06:09:42.1537705Z               _Ty2=double
2020-12-24T06:09:42.1653673Z           ]
2020-12-24T06:09:42.1734735Z           and
2020-12-24T06:09:42.1736150Z           [
2020-12-24T06:09:42.1737249Z               _Ty=LightGBM::label_t
2020-12-24T06:09:42.1738445Z           ] (compiling source file D:\a\1\s\src\treelearner\tree_learner.cpp)
2020-12-24T06:09:42.1740035Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:42.1741437Z           with
2020-12-24T06:09:42.1742768Z           [
2020-12-24T06:09:42.1743597Z               _Ty=LightGBM::label_t
2020-12-24T06:09:42.1744571Z           ] (compiling source file D:\a\1\s\src\treelearner\tree_learner.cpp)
2020-12-24T06:09:42.1746135Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:42.1747289Z           with
2020-12-24T06:09:42.1748168Z           [
2020-12-24T06:09:42.1748879Z               _Ty=double
2020-12-24T06:09:42.1749536Z           ]
2020-12-24T06:09:42.1750221Z           and
2020-12-24T06:09:42.1750972Z           [
2020-12-24T06:09:42.1751922Z               _Ty=LightGBM::label_t
2020-12-24T06:09:42.1753014Z           ] (compiling source file D:\a\1\s\src\treelearner\voting_parallel_tree_learner.cpp)
2020-12-24T06:09:42.1760148Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:42.1761808Z           with
2020-12-24T06:09:42.1762776Z           [
2020-12-24T06:09:42.1763859Z               _Ty2=double
2020-12-24T06:09:42.1764701Z           ]
2020-12-24T06:09:42.1765464Z           and
2020-12-24T06:09:42.1766092Z           [
2020-12-24T06:09:42.1766856Z               _Ty=LightGBM::label_t
2020-12-24T06:09:42.1869370Z           ] (compiling source file D:\a\1\s\src\treelearner\voting_parallel_tree_learner.cpp)
2020-12-24T06:09:42.1875543Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:42.1877072Z           with
2020-12-24T06:09:42.1882951Z           [
2020-12-24T06:09:42.1883990Z               _Ty=LightGBM::label_t
2020-12-24T06:09:42.3619766Z           ] (compiling source file D:\a\1\s\src\treelearner\voting_parallel_tree_learner.cpp)
2020-12-24T06:09:43.2616910Z d:\a\1\s\src\treelearner\linear_tree_learner.h(75): warning C4267: '=': conversion from 'size_t' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:09:43.2619121Z           with
2020-12-24T06:09:43.2619712Z           [
2020-12-24T06:09:43.2620173Z               _Ty=int
2020-12-24T06:09:43.2620793Z           ] (compiling source file D:\a\1\s\src\treelearner\tree_learner.cpp)
2020-12-24T06:09:43.3865418Z   d:\a\1\s\src\treelearner\linear_tree_learner.h(54): note: see reference to function template instantiation 'void LightGBM::LinearTreeLearner::AddPredictionToScoreInner<true>(const LightGBM::Tree *,double *) const' being compiled (compiling source file D:\a\1\s\src\treelearner\tree_learner.cpp)
2020-12-24T06:10:08.9804716Z   c_api.cpp
2020-12-24T06:10:10.0709339Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:10:10.2623705Z           with
2020-12-24T06:10:10.3962415Z           [
2020-12-24T06:10:10.5292650Z               _Ty=double
2020-12-24T06:10:10.6963493Z           ]
2020-12-24T06:10:10.7524409Z           and
2020-12-24T06:10:11.0753558Z           [
2020-12-24T06:10:11.0754878Z               _Ty=LightGBM::label_t
2020-12-24T06:10:11.1525903Z           ] (compiling source file D:\a\1\s\src\c_api.cpp)
2020-12-24T06:10:11.1529266Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:10:11.3532909Z           with
2020-12-24T06:10:11.6163266Z           [
2020-12-24T06:10:11.6393733Z               _Ty2=double
2020-12-24T06:10:11.8283940Z           ]
2020-12-24T06:10:12.3914517Z           and
2020-12-24T06:10:12.7886913Z           [
2020-12-24T06:10:13.0065309Z               _Ty=LightGBM::label_t
2020-12-24T06:10:13.3637798Z           ] (compiling source file D:\a\1\s\src\c_api.cpp)
2020-12-24T06:10:13.9337598Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\_lightgbm.vcxproj]
2020-12-24T06:10:14.5004380Z           with
2020-12-24T06:10:14.6905647Z           [
2020-12-24T06:10:14.7077892Z               _Ty=LightGBM::label_t
2020-12-24T06:10:14.7080442Z           ] (compiling source file D:\a\1\s\src\c_api.cpp)
2020-12-24T06:10:30.9244929Z      Creating library D:/a/1/s/Release/lib_lightgbm.lib and object D:/a/1/s/Release/lib_lightgbm.exp
2020-12-24T06:10:31.4749728Z   _lightgbm.vcxproj -> D:\a\1\s\Release\lib_lightgbm.dll
2020-12-24T06:10:31.6289232Z   Building Custom Rule D:/a/1/s/CMakeLists.txt
2020-12-24T06:10:31.8983963Z   main.cpp
2020-12-24T06:10:31.9003816Z   application.cpp
2020-12-24T06:10:31.9087635Z   boosting.cpp
2020-12-24T06:10:31.9125355Z   gbdt.cpp
2020-12-24T06:10:33.5606846Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:33.5618297Z           with
2020-12-24T06:10:33.5619071Z           [
2020-12-24T06:10:33.5619917Z               _Ty=double
2020-12-24T06:10:33.5622209Z           ]
2020-12-24T06:10:33.5622796Z           and
2020-12-24T06:10:33.5623475Z           [
2020-12-24T06:10:33.5624092Z               _Ty=LightGBM::label_t
2020-12-24T06:10:33.5625035Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt.cpp)
2020-12-24T06:10:33.5626306Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:33.5627388Z           with
2020-12-24T06:10:33.5628047Z           [
2020-12-24T06:10:33.5628637Z               _Ty2=double
2020-12-24T06:10:33.5629473Z           ]
2020-12-24T06:10:33.5629995Z           and
2020-12-24T06:10:33.5630632Z           [
2020-12-24T06:10:33.5631279Z               _Ty=LightGBM::label_t
2020-12-24T06:10:33.5632261Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt.cpp)
2020-12-24T06:10:33.5775795Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:33.5778286Z           with
2020-12-24T06:10:33.5778945Z           [
2020-12-24T06:10:33.5779776Z               _Ty=double
2020-12-24T06:10:33.5780397Z           ]
2020-12-24T06:10:33.5781072Z           and
2020-12-24T06:10:33.5781617Z           [
2020-12-24T06:10:33.5782334Z               _Ty=LightGBM::label_t
2020-12-24T06:10:33.5783168Z           ] (compiling source file D:\a\1\s\src\boosting\boosting.cpp)
2020-12-24T06:10:33.5792498Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:33.5793707Z           with
2020-12-24T06:10:33.5794423Z           [
2020-12-24T06:10:33.5795072Z               _Ty=LightGBM::label_t
2020-12-24T06:10:33.5802768Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt.cpp)
2020-12-24T06:10:33.5957223Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:33.5972966Z           with
2020-12-24T06:10:33.5973909Z           [
2020-12-24T06:10:33.5974639Z               _Ty2=double
2020-12-24T06:10:33.5975413Z           ]
2020-12-24T06:10:33.5976047Z           and
2020-12-24T06:10:33.5976787Z           [
2020-12-24T06:10:33.5977532Z               _Ty=LightGBM::label_t
2020-12-24T06:10:33.5978552Z           ] (compiling source file D:\a\1\s\src\boosting\boosting.cpp)
2020-12-24T06:10:33.6073310Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:33.7176672Z           with
2020-12-24T06:10:33.7178322Z           [
2020-12-24T06:10:33.7183506Z               _Ty=LightGBM::label_t
2020-12-24T06:10:33.7184819Z           ] (compiling source file D:\a\1\s\src\boosting\boosting.cpp)
2020-12-24T06:10:33.8331609Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:33.8333667Z           with
2020-12-24T06:10:34.0240271Z           [
2020-12-24T06:10:34.1943137Z               _Ty=double
2020-12-24T06:10:34.3446483Z           ]
2020-12-24T06:10:34.3450845Z           and
2020-12-24T06:10:34.3471636Z           [
2020-12-24T06:10:34.3473169Z               _Ty=LightGBM::label_t
2020-12-24T06:10:34.4480809Z           ] (compiling source file D:\a\1\s\src\application\application.cpp)
2020-12-24T06:10:34.4482941Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:34.6106908Z           with
2020-12-24T06:10:34.9189835Z           [
2020-12-24T06:10:34.9540543Z               _Ty2=double
2020-12-24T06:10:35.1431008Z           ]
2020-12-24T06:10:35.3320350Z           and
2020-12-24T06:10:35.5202691Z           [
2020-12-24T06:10:35.7092192Z               _Ty=LightGBM::label_t
2020-12-24T06:10:35.8990789Z           ] (compiling source file D:\a\1\s\src\application\application.cpp)
2020-12-24T06:10:36.0881017Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:36.2784007Z           with
2020-12-24T06:10:36.3838059Z           [
2020-12-24T06:10:36.3843172Z               _Ty=LightGBM::label_t
2020-12-24T06:10:36.3844914Z           ] (compiling source file D:\a\1\s\src\application\application.cpp)
2020-12-24T06:10:37.6491255Z   gbdt_model_text.cpp
2020-12-24T06:10:39.0869992Z   gbdt_prediction.cpp
2020-12-24T06:10:42.7243649Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:42.8722546Z           with
2020-12-24T06:10:43.0609907Z           [
2020-12-24T06:10:43.0737961Z               _Ty=double
2020-12-24T06:10:43.1879417Z           ]
2020-12-24T06:10:43.1881131Z           and
2020-12-24T06:10:43.3099605Z           [
2020-12-24T06:10:43.3101181Z               _Ty=LightGBM::label_t
2020-12-24T06:10:43.3102897Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt_model_text.cpp)
2020-12-24T06:10:43.3103893Z   prediction_early_stop.cpp
2020-12-24T06:10:43.3106577Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:43.3107983Z           with
2020-12-24T06:10:43.3109813Z           [
2020-12-24T06:10:43.3110619Z               _Ty2=double
2020-12-24T06:10:43.3111910Z           ]
2020-12-24T06:10:43.3112572Z           and
2020-12-24T06:10:43.3113839Z           [
2020-12-24T06:10:43.3114693Z               _Ty=LightGBM::label_t
2020-12-24T06:10:43.3134497Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt_model_text.cpp)
2020-12-24T06:10:43.4527347Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:43.5020425Z           with
2020-12-24T06:10:43.5022046Z           [
2020-12-24T06:10:43.5111693Z               _Ty=LightGBM::label_t
2020-12-24T06:10:43.5471015Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt_model_text.cpp)
2020-12-24T06:10:43.5475055Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:43.5477165Z           with
2020-12-24T06:10:43.5478665Z           [
2020-12-24T06:10:43.5479527Z               _Ty=double
2020-12-24T06:10:43.5480431Z           ]
2020-12-24T06:10:43.5481115Z           and
2020-12-24T06:10:43.5482022Z           [
2020-12-24T06:10:43.5482624Z               _Ty=LightGBM::label_t
2020-12-24T06:10:43.5484037Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt_prediction.cpp)
2020-12-24T06:10:43.5525185Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:43.5526530Z           with
2020-12-24T06:10:43.5527182Z           [
2020-12-24T06:10:43.5527729Z               _Ty2=double
2020-12-24T06:10:43.5528351Z           ]
2020-12-24T06:10:43.5529114Z           and
2020-12-24T06:10:43.5529806Z           [
2020-12-24T06:10:43.5530385Z               _Ty=LightGBM::label_t
2020-12-24T06:10:43.5532964Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt_prediction.cpp)
2020-12-24T06:10:43.5537500Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:43.5539310Z           with
2020-12-24T06:10:43.5541990Z           [
2020-12-24T06:10:43.5543031Z               _Ty=LightGBM::label_t
2020-12-24T06:10:43.5544415Z           ] (compiling source file D:\a\1\s\src\boosting\gbdt_prediction.cpp)
2020-12-24T06:10:43.6990200Z   bin.cpp
2020-12-24T06:10:44.8744386Z   config.cpp
2020-12-24T06:10:47.0001457Z   config_auto.cpp
2020-12-24T06:10:52.1258798Z   dataset.cpp
2020-12-24T06:10:53.9289930Z   dataset_loader.cpp
2020-12-24T06:10:56.0810914Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:56.0840298Z           with
2020-12-24T06:10:56.1122706Z           [
2020-12-24T06:10:56.3122609Z               _Ty=double
2020-12-24T06:10:56.7659172Z           ]
2020-12-24T06:10:56.7661769Z           and
2020-12-24T06:10:56.7662705Z           [
2020-12-24T06:10:56.7663556Z               _Ty=LightGBM::label_t
2020-12-24T06:10:56.7832972Z           ] (compiling source file D:\a\1\s\src\io\dataset.cpp)
2020-12-24T06:10:56.9601661Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:56.9604941Z           with
2020-12-24T06:10:57.1499971Z           [
2020-12-24T06:10:57.5294968Z               _Ty2=double
2020-12-24T06:10:57.9069846Z           ]
2020-12-24T06:10:58.2850196Z           and
2020-12-24T06:10:58.6620069Z           [
2020-12-24T06:10:59.0400488Z               _Ty=LightGBM::label_t
2020-12-24T06:10:59.4180387Z           ] (compiling source file D:\a\1\s\src\io\dataset.cpp)
2020-12-24T06:10:59.7960814Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:10:59.9985574Z           with
2020-12-24T06:11:00.2912231Z           [
2020-12-24T06:11:00.2913708Z               _Ty=LightGBM::label_t
2020-12-24T06:11:00.3414945Z           ] (compiling source file D:\a\1\s\src\io\dataset.cpp)
2020-12-24T06:11:00.3417277Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:00.3420221Z           with
2020-12-24T06:11:00.3420917Z           [
2020-12-24T06:11:00.3423496Z               _Ty=double
2020-12-24T06:11:00.3424216Z           ]
2020-12-24T06:11:00.3425313Z           and
2020-12-24T06:11:00.3425943Z           [
2020-12-24T06:11:00.3427282Z               _Ty=LightGBM::label_t
2020-12-24T06:11:00.3428538Z           ] (compiling source file D:\a\1\s\src\io\dataset_loader.cpp)
2020-12-24T06:11:00.3430516Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:00.3431839Z           with
2020-12-24T06:11:00.3432935Z           [
2020-12-24T06:11:00.3433870Z               _Ty2=double
2020-12-24T06:11:00.3435431Z           ]
2020-12-24T06:11:00.3436458Z           and
2020-12-24T06:11:00.3439548Z           [
2020-12-24T06:11:00.3440600Z               _Ty=LightGBM::label_t
2020-12-24T06:11:00.3442581Z           ] (compiling source file D:\a\1\s\src\io\dataset_loader.cpp)
2020-12-24T06:11:00.3443966Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:00.3446915Z           with
2020-12-24T06:11:00.3447673Z           [
2020-12-24T06:11:00.3449424Z               _Ty=LightGBM::label_t
2020-12-24T06:11:00.3450594Z           ] (compiling source file D:\a\1\s\src\io\dataset_loader.cpp)
2020-12-24T06:11:04.6146013Z D:\a\1\s\src\io\dataset_loader.cpp(1129): warning C4267: 'argument': conversion from 'size_t' to 'int', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:04.6490125Z D:\a\1\s\src\io\dataset_loader.cpp(1167): warning C4244: '=': conversion from '_Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:04.7861003Z           with
2020-12-24T06:11:04.9197828Z           [
2020-12-24T06:11:05.0044612Z               _Ty2=double
2020-12-24T06:11:05.0047096Z           ]
2020-12-24T06:11:05.0048350Z           and
2020-12-24T06:11:05.0049427Z           [
2020-12-24T06:11:05.0050499Z               _Ty=LightGBM::label_t
2020-12-24T06:11:05.1685566Z           ]
2020-12-24T06:11:05.1694047Z D:\a\1\s\src\io\dataset_loader.cpp(1224): warning C4244: '=': conversion from '_Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:05.1697141Z           with
2020-12-24T06:11:05.1700532Z           [
2020-12-24T06:11:05.1701446Z               _Ty2=double
2020-12-24T06:11:05.1702210Z           ]
2020-12-24T06:11:05.1702947Z           and
2020-12-24T06:11:05.1703602Z           [
2020-12-24T06:11:05.1704338Z               _Ty=LightGBM::label_t
2020-12-24T06:11:05.1705070Z           ]
2020-12-24T06:11:05.1706302Z D:\a\1\s\src\io\dataset_loader.cpp(1297): warning C4244: '=': conversion from '_Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:05.1707546Z           with
2020-12-24T06:11:05.1826760Z           [
2020-12-24T06:11:05.1968344Z               _Ty2=double
2020-12-24T06:11:05.6172808Z           ]
2020-12-24T06:11:05.7262848Z           and
2020-12-24T06:11:05.9426816Z           [
2020-12-24T06:11:06.1880197Z               _Ty=LightGBM::label_t
2020-12-24T06:11:06.5742862Z           ]
2020-12-24T06:11:06.7620335Z   file_io.cpp
2020-12-24T06:11:07.0598828Z   json11.cpp
2020-12-24T06:11:07.3251431Z   metadata.cpp
2020-12-24T06:11:07.5249316Z   parser.cpp
2020-12-24T06:11:07.9499785Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:08.2644609Z           with
2020-12-24T06:11:08.5268987Z           [
2020-12-24T06:11:08.9463233Z               _Ty=double
2020-12-24T06:11:09.1931837Z           ]
2020-12-24T06:11:09.2106143Z           and
2020-12-24T06:11:09.4769549Z           [
2020-12-24T06:11:09.8779653Z               _Ty=LightGBM::label_t
2020-12-24T06:11:09.9924066Z           ] (compiling source file D:\a\1\s\src\io\metadata.cpp)
2020-12-24T06:11:10.2756146Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:10.6401231Z           with
2020-12-24T06:11:10.9329399Z           [
2020-12-24T06:11:11.0271559Z               _Ty2=double
2020-12-24T06:11:11.1132546Z           ]
2020-12-24T06:11:11.1134161Z           and
2020-12-24T06:11:11.1134905Z           [
2020-12-24T06:11:11.1135661Z               _Ty=LightGBM::label_t
2020-12-24T06:11:11.1136499Z           ] (compiling source file D:\a\1\s\src\io\metadata.cpp)
2020-12-24T06:11:11.1137858Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:11.1139568Z           with
2020-12-24T06:11:11.1140212Z           [
2020-12-24T06:11:11.1141027Z               _Ty=LightGBM::label_t
2020-12-24T06:11:11.1141915Z           ] (compiling source file D:\a\1\s\src\io\metadata.cpp)
2020-12-24T06:11:11.1143246Z   train_share_states.cpp
2020-12-24T06:11:11.1144420Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:11.1149408Z           with
2020-12-24T06:11:11.1150752Z           [
2020-12-24T06:11:11.1151757Z               _Ty=double
2020-12-24T06:11:11.1152860Z           ]
2020-12-24T06:11:11.1154140Z           and
2020-12-24T06:11:11.1155015Z           [
2020-12-24T06:11:11.1156062Z               _Ty=LightGBM::label_t
2020-12-24T06:11:11.1157416Z           ] (compiling source file D:\a\1\s\src\io\parser.cpp)
2020-12-24T06:11:11.1159236Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:11.1160913Z           with
2020-12-24T06:11:11.1161812Z           [
2020-12-24T06:11:11.1162769Z               _Ty2=double
2020-12-24T06:11:11.1164520Z           ]
2020-12-24T06:11:11.1169433Z           and
2020-12-24T06:11:11.1173925Z           [
2020-12-24T06:11:11.1182463Z               _Ty=LightGBM::label_t
2020-12-24T06:11:11.1184452Z           ] (compiling source file D:\a\1\s\src\io\parser.cpp)
2020-12-24T06:11:11.1186229Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:11.1188044Z           with
2020-12-24T06:11:11.1189044Z           [
2020-12-24T06:11:11.1191020Z               _Ty=LightGBM::label_t
2020-12-24T06:11:11.1192510Z           ] (compiling source file D:\a\1\s\src\io\parser.cpp)
2020-12-24T06:11:11.3439623Z   tree.cpp
2020-12-24T06:11:14.5634584Z   dcg_calculator.cpp
2020-12-24T06:11:14.7173365Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:14.7285406Z           with
2020-12-24T06:11:14.7288417Z           [
2020-12-24T06:11:14.7312031Z               _Ty=double
2020-12-24T06:11:14.7315470Z           ]
2020-12-24T06:11:14.8514566Z           and
2020-12-24T06:11:14.8515997Z           [
2020-12-24T06:11:14.8516973Z               _Ty=LightGBM::label_t
2020-12-24T06:11:14.8518019Z           ] (compiling source file D:\a\1\s\src\io\tree.cpp)
2020-12-24T06:11:14.8520659Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:14.8522072Z           with
2020-12-24T06:11:14.8522490Z           [
2020-12-24T06:11:14.8523325Z               _Ty2=double
2020-12-24T06:11:14.8524158Z           ]
2020-12-24T06:11:14.8524676Z           and
2020-12-24T06:11:14.8525070Z           [
2020-12-24T06:11:14.8525618Z               _Ty=LightGBM::label_t
2020-12-24T06:11:14.8526266Z           ] (compiling source file D:\a\1\s\src\io\tree.cpp)
2020-12-24T06:11:14.8527415Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:14.8529021Z           with
2020-12-24T06:11:14.8529484Z           [
2020-12-24T06:11:14.8530037Z               _Ty=LightGBM::label_t
2020-12-24T06:11:14.8531013Z           ] (compiling source file D:\a\1\s\src\io\tree.cpp)
2020-12-24T06:11:14.9837710Z   metric.cpp
2020-12-24T06:11:15.1230564Z D:\a\1\s\src\io\tree.cpp(382): warning C4267: '=': conversion from 'size_t' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:15.2953431Z           with
2020-12-24T06:11:15.2989940Z           [
2020-12-24T06:11:15.4152044Z               _Ty=int
2020-12-24T06:11:15.6049928Z           ]
2020-12-24T06:11:16.4241128Z   ifaddrs_patch.cpp
2020-12-24T06:11:16.5741274Z   linker_topo.cpp
2020-12-24T06:11:16.7975633Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:16.7976870Z           with
2020-12-24T06:11:16.7977628Z           [
2020-12-24T06:11:16.7978437Z               _Ty=double
2020-12-24T06:11:16.7979206Z           ]
2020-12-24T06:11:16.7979948Z           and
2020-12-24T06:11:16.7980541Z           [
2020-12-24T06:11:16.7981258Z               _Ty=LightGBM::label_t
2020-12-24T06:11:16.7982339Z           ] (compiling source file D:\a\1\s\src\metric\dcg_calculator.cpp)
2020-12-24T06:11:16.8327883Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:16.8545680Z           with
2020-12-24T06:11:16.8548275Z           [
2020-12-24T06:11:16.8549019Z               _Ty2=double
2020-12-24T06:11:16.8550018Z           ]
2020-12-24T06:11:16.8550778Z           and
2020-12-24T06:11:16.8551610Z           [
2020-12-24T06:11:16.8552684Z               _Ty=LightGBM::label_t
2020-12-24T06:11:16.8553809Z           ] (compiling source file D:\a\1\s\src\metric\dcg_calculator.cpp)
2020-12-24T06:11:16.8558422Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:16.8559784Z           with
2020-12-24T06:11:16.8560503Z           [
2020-12-24T06:11:16.8561620Z               _Ty=LightGBM::label_t
2020-12-24T06:11:16.8562475Z           ] (compiling source file D:\a\1\s\src\metric\dcg_calculator.cpp)
2020-12-24T06:11:17.4411032Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:17.5698985Z           with
2020-12-24T06:11:17.7641037Z           [
2020-12-24T06:11:17.9578974Z               _Ty=double
2020-12-24T06:11:18.1469016Z           ]
2020-12-24T06:11:18.3418160Z           and
2020-12-24T06:11:18.6151639Z           [
2020-12-24T06:11:18.9934568Z               _Ty=LightGBM::label_t
2020-12-24T06:11:19.3719314Z           ] (compiling source file D:\a\1\s\src\metric\metric.cpp)
2020-12-24T06:11:19.7428240Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:20.0821976Z           with
2020-12-24T06:11:20.4609306Z           [
2020-12-24T06:11:20.5539025Z               _Ty2=double
2020-12-24T06:11:20.6343565Z           ]
2020-12-24T06:11:20.6821121Z           and
2020-12-24T06:11:20.8279609Z           [
2020-12-24T06:11:20.8281442Z               _Ty=LightGBM::label_t
2020-12-24T06:11:20.8282541Z           ] (compiling source file D:\a\1\s\src\metric\metric.cpp)
2020-12-24T06:11:20.8285723Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:20.8287354Z           with
2020-12-24T06:11:20.8720294Z           [
2020-12-24T06:11:21.1059496Z               _Ty=LightGBM::label_t
2020-12-24T06:11:21.2956530Z           ] (compiling source file D:\a\1\s\src\metric\metric.cpp)
2020-12-24T06:11:21.2989145Z   linkers_mpi.cpp
2020-12-24T06:11:21.6060895Z   linkers_socket.cpp
2020-12-24T06:11:23.4088947Z   network.cpp
2020-12-24T06:11:26.8099041Z   objective_function.cpp
2020-12-24T06:11:27.1786809Z   cuda_tree_learner.cpp
2020-12-24T06:11:27.6799161Z   data_parallel_tree_learner.cpp
2020-12-24T06:11:28.8219358Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:28.8981711Z           with
2020-12-24T06:11:28.9174614Z           [
2020-12-24T06:11:28.9175753Z               _Ty=double
2020-12-24T06:11:28.9178224Z           ]
2020-12-24T06:11:28.9183986Z           and
2020-12-24T06:11:28.9188328Z           [
2020-12-24T06:11:28.9189326Z               _Ty=LightGBM::label_t
2020-12-24T06:11:28.9193824Z           ] (compiling source file D:\a\1\s\src\objective\objective_function.cpp)
2020-12-24T06:11:28.9195294Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:28.9198880Z           with
2020-12-24T06:11:28.9199655Z           [
2020-12-24T06:11:28.9201214Z               _Ty2=double
2020-12-24T06:11:28.9203299Z           ]
2020-12-24T06:11:28.9205861Z           and
2020-12-24T06:11:28.9206520Z           [
2020-12-24T06:11:28.9208095Z               _Ty=LightGBM::label_t
2020-12-24T06:11:28.9209159Z           ] (compiling source file D:\a\1\s\src\objective\objective_function.cpp)
2020-12-24T06:11:28.9211694Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:28.9213388Z           with
2020-12-24T06:11:28.9214687Z           [
2020-12-24T06:11:28.9215543Z               _Ty=LightGBM::label_t
2020-12-24T06:11:28.9217104Z           ] (compiling source file D:\a\1\s\src\objective\objective_function.cpp)
2020-12-24T06:11:29.8132337Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:29.8134357Z           with
2020-12-24T06:11:29.8136297Z           [
2020-12-24T06:11:29.8137155Z               _Ty=double
2020-12-24T06:11:29.8138107Z           ]
2020-12-24T06:11:29.8139521Z           and
2020-12-24T06:11:29.8287274Z           [
2020-12-24T06:11:29.8288660Z               _Ty=LightGBM::label_t
2020-12-24T06:11:29.8305021Z           ] (compiling source file D:\a\1\s\src\treelearner\data_parallel_tree_learner.cpp)
2020-12-24T06:11:29.8306913Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:30.0176472Z           with
2020-12-24T06:11:30.0743859Z           [
2020-12-24T06:11:30.2578366Z               _Ty2=double
2020-12-24T06:11:33.1208049Z           ]
2020-12-24T06:11:33.1209088Z           and
2020-12-24T06:11:33.1209891Z           [
2020-12-24T06:11:33.1210540Z               _Ty=LightGBM::label_t
2020-12-24T06:11:33.1211556Z           ] (compiling source file D:\a\1\s\src\treelearner\data_parallel_tree_learner.cpp)
2020-12-24T06:11:33.1213280Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:33.1214383Z           with
2020-12-24T06:11:33.1215053Z           [
2020-12-24T06:11:33.1215677Z               _Ty=LightGBM::label_t
2020-12-24T06:11:33.1216643Z           ] (compiling source file D:\a\1\s\src\treelearner\data_parallel_tree_learner.cpp)
2020-12-24T06:11:33.1223713Z   feature_parallel_tree_learner.cpp
2020-12-24T06:11:33.2138677Z   gpu_tree_learner.cpp
2020-12-24T06:11:33.5884300Z   linear_tree_learner.cpp
2020-12-24T06:11:37.3647991Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:37.4117890Z           with
2020-12-24T06:11:37.4119642Z           [
2020-12-24T06:11:37.5138808Z               _Ty=double
2020-12-24T06:11:37.5140576Z           ]
2020-12-24T06:11:37.5183982Z           and
2020-12-24T06:11:37.5184879Z           [
2020-12-24T06:11:37.5185684Z               _Ty=LightGBM::label_t
2020-12-24T06:11:37.5186646Z           ] (compiling source file D:\a\1\s\src\treelearner\feature_parallel_tree_learner.cpp)
2020-12-24T06:11:37.5188772Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:37.5189999Z           with
2020-12-24T06:11:37.5190586Z           [
2020-12-24T06:11:37.5191271Z               _Ty2=double
2020-12-24T06:11:37.5191875Z           ]
2020-12-24T06:11:37.5192516Z           and
2020-12-24T06:11:37.5193100Z           [
2020-12-24T06:11:37.5193839Z               _Ty=LightGBM::label_t
2020-12-24T06:11:37.5194779Z           ] (compiling source file D:\a\1\s\src\treelearner\feature_parallel_tree_learner.cpp)
2020-12-24T06:11:37.5218733Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:37.8978176Z           with
2020-12-24T06:11:37.9230100Z           [
2020-12-24T06:11:37.9233829Z               _Ty=double
2020-12-24T06:11:37.9234963Z           ]
2020-12-24T06:11:37.9236194Z           and
2020-12-24T06:11:37.9237487Z           [
2020-12-24T06:11:37.9238735Z               _Ty=LightGBM::label_t
2020-12-24T06:11:37.9240142Z           ] (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:11:37.9241848Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:37.9243357Z           with
2020-12-24T06:11:37.9244166Z           [
2020-12-24T06:11:37.9245257Z               _Ty=LightGBM::label_t
2020-12-24T06:11:37.9246525Z           ] (compiling source file D:\a\1\s\src\treelearner\feature_parallel_tree_learner.cpp)
2020-12-24T06:11:37.9249533Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:37.9251610Z           with
2020-12-24T06:11:37.9252648Z           [
2020-12-24T06:11:37.9253656Z               _Ty2=double
2020-12-24T06:11:37.9255836Z           ]
2020-12-24T06:11:37.9258033Z           and
2020-12-24T06:11:37.9259050Z           [
2020-12-24T06:11:37.9259997Z               _Ty=LightGBM::label_t
2020-12-24T06:11:37.9261284Z           ] (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:11:37.9262856Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:37.9289757Z           with
2020-12-24T06:11:38.0049441Z           [
2020-12-24T06:11:38.3357554Z               _Ty=LightGBM::label_t
2020-12-24T06:11:38.4849407Z           ] (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:11:38.7227953Z   serial_tree_learner.cpp
2020-12-24T06:11:39.8901616Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:39.8904702Z           with
2020-12-24T06:11:39.8905509Z           [
2020-12-24T06:11:39.8906041Z               _Ty=double
2020-12-24T06:11:39.8907205Z           ]
2020-12-24T06:11:39.8907692Z           and
2020-12-24T06:11:39.8908013Z           [
2020-12-24T06:11:39.8908650Z               _Ty=LightGBM::label_t
2020-12-24T06:11:39.8909469Z           ] (compiling source file D:\a\1\s\src\treelearner\serial_tree_learner.cpp)
2020-12-24T06:11:39.8924236Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:40.0987918Z           with
2020-12-24T06:11:40.0989101Z           [
2020-12-24T06:11:40.2708681Z               _Ty2=double
2020-12-24T06:11:40.3587707Z           ]
2020-12-24T06:11:40.3588569Z           and
2020-12-24T06:11:40.3589112Z           [
2020-12-24T06:11:40.3589579Z               _Ty=LightGBM::label_t
2020-12-24T06:11:40.3590584Z           ] (compiling source file D:\a\1\s\src\treelearner\serial_tree_learner.cpp)
2020-12-24T06:11:40.3594219Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:40.3596099Z           with
2020-12-24T06:11:40.3596457Z           [
2020-12-24T06:11:40.3596961Z               _Ty=LightGBM::label_t
2020-12-24T06:11:40.3597828Z           ] (compiling source file D:\a\1\s\src\treelearner\serial_tree_learner.cpp)
2020-12-24T06:11:40.3600924Z d:\a\1\s\src\treelearner\linear_tree_learner.h(75): warning C4267: '=': conversion from 'size_t' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:40.3602263Z           with
2020-12-24T06:11:40.3603065Z           [
2020-12-24T06:11:40.3603961Z               _Ty=int
2020-12-24T06:11:40.3604805Z           ] (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:11:40.3606595Z   d:\a\1\s\src\treelearner\linear_tree_learner.h(54): note: see reference to function template instantiation 'void LightGBM::LinearTreeLearner::AddPredictionToScoreInner<true>(const LightGBM::Tree *,double *) const' being compiled (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:11:40.3895683Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(229): warning C4267: 'argument': conversion from 'size_t' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:40.3897929Z           with
2020-12-24T06:11:40.3898513Z           [
2020-12-24T06:11:40.3898881Z               _Ty=int
2020-12-24T06:11:40.3911569Z           ]
2020-12-24T06:11:40.3934061Z   D:\a\1\s\src\treelearner\linear_tree_learner.cpp(126): note: see reference to function template instantiation 'void LightGBM::LinearTreeLearner::CalculateLinear<true>(LightGBM::Tree *,bool,const LightGBM::score_t *,const LightGBM::score_t *,bool) const' being compiled
2020-12-24T06:11:40.3975929Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(231): warning C4267: '=': conversion from 'size_t' to 'int', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:40.3981906Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(238): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:40.4247444Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(245): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:40.4254623Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(293): warning C4244: '+=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:40.4256455Z           with
2020-12-24T06:11:40.4260260Z           [
2020-12-24T06:11:40.4261627Z               _Ty=LightGBM::label_t
2020-12-24T06:11:40.4271913Z           ]
2020-12-24T06:11:40.4276575Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(296): warning C4244: '+=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:40.4282344Z           with
2020-12-24T06:11:40.4283347Z           [
2020-12-24T06:11:40.4284451Z               _Ty=LightGBM::label_t
2020-12-24T06:11:40.4293848Z           ]
2020-12-24T06:11:40.4313503Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(309): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:40.5308918Z D:\a\1\s\src\treelearner\linear_tree_learner.cpp(342): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:45.8634381Z   tree_learner.cpp
2020-12-24T06:11:46.2589955Z C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.16.27023\include\xutility(2903): warning C4244: '=': conversion from 'const _Ty' to 'float', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:46.2592016Z           with
2020-12-24T06:11:46.2592741Z           [
2020-12-24T06:11:46.2593306Z               _Ty=int
2020-12-24T06:11:46.2599379Z           ] (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:11:46.3868638Z   C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.16.27023\include\xutility(2917): note: see reference to function template instantiation 'void std::_Fill_unchecked1<_FwdIt,_Ty>(_FwdIt,_FwdIt,const _Ty &,std::false_type)' being compiled
2020-12-24T06:11:46.5758426Z           with
2020-12-24T06:11:46.7658222Z           [
2020-12-24T06:11:46.9558144Z               _FwdIt=float *,
2020-12-24T06:11:47.1446074Z               _Ty=int
2020-12-24T06:11:47.3385448Z           ] (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:11:47.5199550Z   C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.16.27023\include\xutility(2925): note: see reference to function template instantiation 'void std::_Fill_unchecked<float*,_Ty>(_FwdIt,_FwdIt,const _Ty &)' being compiled
2020-12-24T06:11:47.5856017Z           with
2020-12-24T06:11:47.5857749Z           [
2020-12-24T06:11:47.8985925Z               _Ty=int,
2020-12-24T06:11:47.9207559Z               _FwdIt=float *
2020-12-24T06:11:48.1099730Z           ] (compiling source file D:\a\1\s\src\treelearner\linear_tree_learner.cpp)
2020-12-24T06:11:48.1173958Z   D:\a\1\s\src\treelearner\linear_tree_learner.cpp(239): note: see reference to function template instantiation 'void std::fill<std::_Vector_iterator<std::_Vector_val<std::_Simple_types<_Ty>>>,int>(_FwdIt,_FwdIt,const int &)' being compiled
2020-12-24T06:11:48.1175913Z           with
2020-12-24T06:11:48.1176623Z           [
2020-12-24T06:11:48.1177674Z               _Ty=LightGBM::label_t,
2020-12-24T06:11:48.1179168Z               _FwdIt=std::_Vector_iterator<std::_Vector_val<std::_Simple_types<LightGBM::label_t>>>
2020-12-24T06:11:48.1180202Z           ]
2020-12-24T06:11:48.1181871Z   D:\a\1\s\src\treelearner\linear_tree_learner.cpp(126): note: see reference to function template instantiation 'void LightGBM::LinearTreeLearner::CalculateLinear<true>(LightGBM::Tree *,bool,const LightGBM::score_t *,const LightGBM::score_t *,bool) const' being compiled
2020-12-24T06:11:48.1184373Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:48.1185489Z           with
2020-12-24T06:11:48.1186204Z           [
2020-12-24T06:11:48.1186979Z               _Ty=double
2020-12-24T06:11:48.1187738Z           ]
2020-12-24T06:11:48.1188309Z           and
2020-12-24T06:11:48.1189003Z           [
2020-12-24T06:11:48.1189675Z               _Ty=LightGBM::label_t
2020-12-24T06:11:48.1190677Z           ] (compiling source file D:\a\1\s\src\treelearner\tree_learner.cpp)
2020-12-24T06:11:48.1192000Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:48.1193233Z           with
2020-12-24T06:11:48.1193874Z           [
2020-12-24T06:11:48.1194444Z               _Ty2=double
2020-12-24T06:11:48.1195272Z           ]
2020-12-24T06:11:48.1196000Z           and
2020-12-24T06:11:48.1196619Z           [
2020-12-24T06:11:48.1197448Z               _Ty=LightGBM::label_t
2020-12-24T06:11:48.1198407Z           ] (compiling source file D:\a\1\s\src\treelearner\tree_learner.cpp)
2020-12-24T06:11:48.1199689Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:48.1311111Z           with
2020-12-24T06:11:48.1311788Z           [
2020-12-24T06:11:48.1312639Z               _Ty=LightGBM::label_t
2020-12-24T06:11:48.1313496Z           ] (compiling source file D:\a\1\s\src\treelearner\tree_learner.cpp)
2020-12-24T06:11:48.3020235Z   voting_parallel_tree_learner.cpp
2020-12-24T06:11:49.6208356Z d:\a\1\s\src\treelearner\linear_tree_learner.h(75): warning C4267: '=': conversion from 'size_t' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:49.7710566Z           with
2020-12-24T06:11:49.9599304Z           [
2020-12-24T06:11:50.1507970Z               _Ty=int
2020-12-24T06:11:50.1607434Z           ] (compiling source file D:\a\1\s\src\treelearner\tree_learner.cpp)
2020-12-24T06:11:50.1610691Z   d:\a\1\s\src\treelearner\linear_tree_learner.h(54): note: see reference to function template instantiation 'void LightGBM::LinearTreeLearner::AddPredictionToScoreInner<true>(const LightGBM::Tree *,double *) const' being compiled (compiling source file D:\a\1\s\src\treelearner\tree_learner.cpp)
2020-12-24T06:11:50.1620109Z D:\a\1\s\include\LightGBM/dataset.h(343): warning C4244: '=': conversion from 'const _Ty' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:50.1622581Z           with
2020-12-24T06:11:50.1624015Z           [
2020-12-24T06:11:50.1625106Z               _Ty=double
2020-12-24T06:11:50.1626506Z           ]
2020-12-24T06:11:50.1627631Z           and
2020-12-24T06:11:50.1629071Z           [
2020-12-24T06:11:50.1630449Z               _Ty=LightGBM::label_t
2020-12-24T06:11:50.1830668Z           ] (compiling source file D:\a\1\s\src\treelearner\voting_parallel_tree_learner.cpp)
2020-12-24T06:11:50.1856685Z D:\a\1\s\include\LightGBM/dataset.h(364): warning C4244: '=': conversion from 'const _Ty2' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:50.1858489Z           with
2020-12-24T06:11:50.1864285Z           [
2020-12-24T06:11:50.1864857Z               _Ty2=double
2020-12-24T06:11:50.1865540Z           ]
2020-12-24T06:11:50.1866203Z           and
2020-12-24T06:11:50.1866592Z           [
2020-12-24T06:11:50.1867343Z               _Ty=LightGBM::label_t
2020-12-24T06:11:50.1868506Z           ] (compiling source file D:\a\1\s\src\treelearner\voting_parallel_tree_learner.cpp)
2020-12-24T06:11:50.1877531Z D:\a\1\s\include\LightGBM/dataset.h(377): warning C4244: '=': conversion from 'double' to '_Ty', possible loss of data [D:\a\1\s\build\lightgbm.vcxproj]
2020-12-24T06:11:50.1878813Z           with
2020-12-24T06:11:50.1879392Z           [
2020-12-24T06:11:50.1879868Z               _Ty=LightGBM::label_t
2020-12-24T06:11:50.3469636Z           ] (compiling source file D:\a\1\s\src\treelearner\voting_parallel_tree_learner.cpp)
2020-12-24T06:12:26.5004689Z      Creating library D:/a/1/s/Release/lightgbm.lib and object D:/a/1/s/Release/lightgbm.exp
2020-12-24T06:12:27.2185229Z   lightgbm.vcxproj -> D:\a\1\s\Release\lightgbm.exe
2020-12-24T06:12:27.3153025Z   Building Custom Rule D:/a/1/s/CMakeLists.txt
@guolinke
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cc @btrotta

@sisco0 sisco0 mentioned this issue Dec 25, 2020
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@sisco0
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sisco0 commented Dec 25, 2020

That happens when there is a precission loss, which mainly is based at combining double datatype with float datatype objects.
I am adding a PR for this to be solved.

@StrikerRUS
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Unfortunately, #3678 didn't fix warnings. They are still in master after merging. Reopening this issue.

@StrikerRUS StrikerRUS reopened this Jan 3, 2021
@btrotta btrotta linked a pull request Jan 5, 2021 that will close this issue
Fix compiler warnings caused by implicit type conversion (fixes #3677) #3729
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guolinke pushed a commit that referenced this issue Jan 7, 2021
@btrotta
Fix compiler warnings caused by implicit type conversion (fixes #3677) (
753b0e9 
#3729)

* Fix compiler warnings caused by implicit type conversion

* Fix more warnings

* Fix more warnings
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This issue has been automatically locked since there has not been any recent activity since it was closed. To start a new related discussion, open a new issue at https://github.com/microsoft/LightGBM/issues including a reference to this.

@github-actions github-actions bot locked as resolved and limited conversation to collaborators Aug 23, 2023
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@guolinke @StrikerRUS @sisco0