i_nint.c

gcc-2.95.3 Linux下最常用的C编译器

#include "f2c.h"

#ifdef KR_headers
double floor();
integer i_nint(x) real *x;
#else
#undef abs
#include <math.h>
integer i_nint(real *x)
#endif
{
return (integer)(*x >= 0 ? floor(*x + .5) : -floor(.5 - *x));
}