blob: 59917ac8d432c3771374c4eb91005b5de2a1baf8 [file] [log] [blame]
/**
* This file has no copyright assigned and is placed in the Public Domain.
* This file is part of the mingw-w64 runtime package.
* No warranty is given; refer to the file DISCLAIMER.PD within this package.
*/
#include <math.h>
#include <errno.h>
double ldexp(double x, int expn)
{
double res = 0.0;
if (!isfinite (x) || x == 0.0)
return x;
__asm__ __volatile__ ("fscale"
: "=t" (res)
: "0" (x), "u" ((double) expn));
if (!isfinite (res) || res == 0.0L)
errno = ERANGE;
return res;
}