23 lines
545 B
C
23 lines
545 B
C
/**
|
|
* 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>
|
|
|
|
long double ldexpl(long double x, int expn)
|
|
{
|
|
long double res = 0.0L;
|
|
if (!isfinite (x) || x == 0.0L)
|
|
return x;
|
|
|
|
__asm__ __volatile__ ("fscale"
|
|
: "=t" (res)
|
|
: "0" (x), "u" ((long double) expn));
|
|
|
|
if (!isfinite (res) || res == 0.0L)
|
|
errno = ERANGE;
|
|
|
|
return res;
|
|
}
|