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print_p.c
executable file
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print_p.c
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#include "ft_printf.h"
static int negprecp_format(t_ppack *pack, void *p, int *len, \
unsigned char *flags)
{
if (pack->prec)
pack->width = pack->prec;
pack->prec = 0;
*flags &= ~ZERO;
*flags |= MINUS;
if (!p)
*len = 0;
pack->width -= *len + 2;
if (pack->width < 0)
pack->width = 0;
return (*len);
}
static int correct_p(t_ppack *pack, const char *address, void *p, \
unsigned char *flags)
{
int len;
if (!address)
{
*flags |= ERROR;
return (0);
}
len = (int)ft_strlen(address);
if (*flags & PRECTOW)
return (negprecp_format(pack, p, &len, flags));
if (!p && (*flags & WASDOT) && !pack->prec && !(*flags & NEGPREC))
len = 0;
if ((*flags & WASDOT) && !pack->prec && !(*flags & NEGPREC))
*flags &= ~ZERO;
if (pack->prec)
*flags &= ~ZERO;
pack->prec = len >= pack->prec ? 0 : pack->prec - len;
pack->width -= pack->prec + len + 2;
if (pack->width < 0)
pack->width = 0;
return (len);
}
static void print_ox(unsigned char *flags, int *bytes)
{
if (write(1, "0x", 2) < 0)
*flags |= ERROR;
else
*bytes += 2;
}
static void print_ptr(const char *address, unsigned char *flags, int *bytes, \
int len)
{
if (write(1, address, len) < 0)
*flags |= ERROR;
else
*bytes += len;
}
void print_p(t_ppack *pack, void *p, unsigned char *flags)
{
const char *address;
int len;
address = ft_itoahex((size_t)p, 0);
len = correct_p(pack, address, p, flags);
if (!(*flags & ERROR) && (*flags & ZERO))
print_ox(flags, &pack->bytes);
if (!(*flags & ERROR) && !(*flags & MINUS) && pack->width)
{
if (*flags & ZERO)
print_wdprec('0', &pack->width, flags, &pack->bytes);
else
print_wdprec(' ', &pack->width, flags, &pack->bytes);
}
if (!(*flags & ERROR) && !(*flags & ZERO))
print_ox(flags, &pack->bytes);
if (!(*flags & ERROR) && pack->prec)
print_wdprec('0', &pack->prec, flags, &pack->bytes);
if (!(*flags & ERROR))
print_ptr(address, flags, &pack->bytes, len);
if (!(*flags & ERROR) && (pack->width > 0))
print_wdprec(' ', &pack->width, flags, &pack->bytes);
free((char *)address);
}