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Diffstat (limited to 'lib/msun/src/s_ldexpf.c')
-rw-r--r-- | lib/msun/src/s_ldexpf.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/lib/msun/src/s_ldexpf.c b/lib/msun/src/s_ldexpf.c new file mode 100644 index 0000000..cdb4476 --- /dev/null +++ b/lib/msun/src/s_ldexpf.c @@ -0,0 +1,35 @@ +/* s_ldexpf.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. + * ==================================================== + */ + +#ifndef lint +static char rcsid[] = "$Id: s_ldexpf.c,v 1.1 1994/08/10 20:32:39 jtc Exp $"; +#endif + +#include "math.h" +#include "math_private.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; +} |