kolibrios/programs/develop/libraries/newlib/math/ldexp.c
Sergey Semyonov (Serge) 2336060a0c newlib: update
git-svn-id: svn://kolibrios.org@1906 a494cfbc-eb01-0410-851d-a64ba20cac60
2011-03-11 18:52:24 +00:00

20 lines
317 B
C

#include <math.h>
#include <errno.h>
double ldexp(double x, int expn)
{
double res;
if (!isfinite (x) || x == 0.0L)
return x;
__asm__ ("fscale"
: "=t" (res)
: "0" (x), "u" ((double) expn));
// if (!isfinite (res) || res == 0.0L)
// errno = ERANGE;
return res;
}