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[devel] Guard "modf()" with PNG_FLOATING_ARITHMETIC_SUPPORTED.

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Glenn Randers-Pehrson 2010-07-29 21:21:03 -05:00
parent 6679d7c0b1
commit b9109e8254
1 changed files with 7 additions and 1 deletions
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8
png.c
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@ -1155,10 +1155,16 @@ png_ascii_from_fp(png_structp png_ptr, png_charp ascii, png_size_t size,
* that the final digit is rounded. * that the final digit is rounded.
*/ */
if (cdigits+czero-clead+1 < (int)precision) if (cdigits+czero-clead+1 < (int)precision)
#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
fp = modf(fp, &d); fp = modf(fp, &d);
#else
{
d = (double)((int)(fp));
fp -= d;
}
#endif
else else
{ {
/* End of loop - round the whole number. */
#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED #ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
d = floor(fp + .5); d = floor(fp + .5);
#else #else