Fix bug in IsLong implementation #4655
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Relates: #4649 This commit fixes a bug in the IsLong implementation, and prefers reading long values over double values in PrimitiveObjectFormatter when the bytes represent a valid long value, to avoid floating point rounding errors that may happen when parsing a double from a long value. The bug in IsLong was that the loop over the array segment bytes was exiting early when the count of bytes was the same as long.Min/MaxValue length, and the current loop byte is less than the byte at index in long.Min/MaxValue. In this scenario, it should not exit early, but not continue to check following loop bytes against byte at index in long.Min/MaxValue. Following loop iterations still need to check whether remaining bytes are numbers.
Mpdreamz
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Apr 22, 2020
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Relates: #4649 This commit fixes a bug in the IsLong implementation, and prefers reading long values over double values in PrimitiveObjectFormatter when the bytes represent a valid long value, to avoid floating point rounding errors that may happen when parsing a double from a long value. The bug in IsLong was that the loop over the array segment bytes was exiting early when the count of bytes was the same as long.Min/MaxValue length, and the current loop byte is less than the byte at index in long.Min/MaxValue. In this scenario, it should not exit early, but not continue to check following loop bytes against byte at index in long.Min/MaxValue. Following loop iterations still need to check whether remaining bytes are numbers.
github-actions bot
pushed a commit
that referenced
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Apr 22, 2020
Relates: #4649 This commit fixes a bug in the IsLong implementation, and prefers reading long values over double values in PrimitiveObjectFormatter when the bytes represent a valid long value, to avoid floating point rounding errors that may happen when parsing a double from a long value. The bug in IsLong was that the loop over the array segment bytes was exiting early when the count of bytes was the same as long.Min/MaxValue length, and the current loop byte is less than the byte at index in long.Min/MaxValue. In this scenario, it should not exit early, but not continue to check following loop bytes against byte at index in long.Min/MaxValue. Following loop iterations still need to check whether remaining bytes are numbers.
russcam
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May 7, 2020
Relates: #4649 This commit fixes a bug in the IsLong implementation, and prefers reading long values over double values in PrimitiveObjectFormatter when the bytes represent a valid long value, to avoid floating point rounding errors that may happen when parsing a double from a long value. The bug in IsLong was that the loop over the array segment bytes was exiting early when the count of bytes was the same as long.Min/MaxValue length, and the current loop byte is less than the byte at index in long.Min/MaxValue. In this scenario, it should not exit early, but not continue to check following loop bytes against byte at index in long.Min/MaxValue. Following loop iterations still need to check whether remaining bytes are numbers. (cherry picked from commit f8c6940)
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Relates: #4649
This commit fixes a bug in the IsLong implementation, and prefers
reading long values over double values in PrimitiveObjectFormatter
when the bytes represent a valid long value, to avoid floating
point rounding errors that may happen when parsing a double from
a long value.
The bug in IsLong was that the loop over the array segment bytes was
exiting early when the count of bytes was the same as long.Min/MaxValue
length, and the current loop byte is less than the byte at index in
long.Min/MaxValue. In this scenario, it should not exit early, but
not continue to check following loop bytes against byte at index in
long.Min/MaxValue. Following loop iterations still need to check
whether remaining bytes are numbers.