diff options
Diffstat (limited to 'sysdeps/generic/e_scalbf.c')
| -rw-r--r-- | sysdeps/generic/e_scalbf.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/sysdeps/generic/e_scalbf.c b/sysdeps/generic/e_scalbf.c index f51057e7b4..9d769f4ce1 100644 --- a/sysdeps/generic/e_scalbf.c +++ b/sysdeps/generic/e_scalbf.c @@ -8,7 +8,7 @@ * * Developed at SunPro, a Sun Microsystems, Inc. business. * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice + * software is freely granted, provided that this notice * is preserved. * ==================================================== */ @@ -17,6 +17,7 @@ static char rcsid[] = "$NetBSD: e_scalbf.c,v 1.3 1995/05/10 20:46:12 jtc Exp $"; #endif +#include <fenv.h> #include "math.h" #include "math_private.h" @@ -45,10 +46,17 @@ static char rcsid[] = "$NetBSD: e_scalbf.c,v 1.3 1995/05/10 20:46:12 jtc Exp $"; else if (x == 0) return x; else if (!__finitef (x)) - return __nanf (""); + { + feraiseexcept (FE_INVALID); + return __nanf (""); + } else return x/(-fn); } - if (__rintf(fn)!=fn) return __nanf (""); + if (__rintf(fn)!=fn) + { + feraiseexcept (FE_INVALID); + return __nanf (""); + } if ( fn > (float)65000.0) return __scalbnf(x, 65000); if (-fn > (float)65000.0) return __scalbnf(x,-65000); return __scalbnf(x,(int)fn); |