0,0 → 1,44 |
/* sf_ldexp.c -- float version of s_ldexp.c. |
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. |
*/ |
|
/* |
* ==================================================== |
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
* |
* Developed at SunPro, a Sun Microsystems, Inc. business. |
* Permission to use, copy, modify, and distribute this |
* software is freely granted, provided that this notice |
* is preserved. |
* ==================================================== |
*/ |
|
#include "fdlibm.h" |
#include <errno.h> |
|
#ifdef __STDC__ |
float ldexpf(float value, int exp) |
#else |
float ldexpf(value, exp) |
float value; int exp; |
#endif |
{ |
if(!finitef(value)||value==(float)0.0) return value; |
value = scalbnf(value,exp); |
if(!finitef(value)||value==(float)0.0) errno = ERANGE; |
return value; |
} |
|
#ifdef _DOUBLE_IS_32BITS |
|
#ifdef __STDC__ |
double ldexp(double value, int exp) |
#else |
double ldexp(value, exp) |
double value; int exp; |
#endif |
{ |
return (double) ldexpf((float) value, exp); |
} |
|
#endif /* defined(_DOUBLE_IS_32BITS) */ |