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Support floating point. 

Add PRINTF_LONG_SUPPORT to %g option.
This commit is contained in:
HuangRui 2015-01-26 17:21:43 +08:00
parent 2e513a967e
commit e11721ebfd
1 changed files with 8 additions and 1 deletions
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9
app/libc/c_stdio.c
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@ -273,7 +273,11 @@ static int d2a(double num, char *bf)
fpart = absnum - (double)ipart;
// convert integer part to string
#ifdef PRINTF_LONG_SUPPORT
len += li2a(ipart, bf);
#else
len += i2a(ipart, bf);
#endif
#ifndef EPSILON
#define EPSILON ((double)(0.00000001))
@ -299,14 +303,17 @@ static int d2a(double num, char *bf)
{
fpart = fpart * 10;
}
#ifdef PRINTF_LONG_SUPPORT
len += li2a((int)fpart, bf);
#else
len += i2a((int)fpart, bf);
#endif
}
#undef EPSILON
if (num < 0)
{
len ++;
}
return len;
}