Staging
v0.8.1
v0.8.1
Revision 841815e2b244725c54225aaaf5965704a461ca7c authored by cvs2svn on 09 October 2000, 23:43:55 UTC, committed by cvs2svn on 09 October 2000, 23:43:55 UTC
1 parent cfc4178
fmod.c
/* Portable fmod(x, y) implementation for systems that don't have it */
#include "config.h"
#include "pyport.h"
#include <errno.h>
double
fmod(double x, double y)
{
double i, f;
if (y == 0.0) {
errno = EDOM;
return 0.0;
}
/* return f such that x = i*y + f for some integer i
such that |f| < |y| and f has the same sign as x */
i = floor(x/y);
f = x - i*y;
if ((x < 0.0) != (y < 0.0))
f = f-y;
return f;
}
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