diff options
Diffstat (limited to 'sysdeps/generic/s_nextafter.c')
| -rw-r--r-- | sysdeps/generic/s_nextafter.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sysdeps/generic/s_nextafter.c b/sysdeps/generic/s_nextafter.c index a016ab0a4d..9290fc6568 100644 --- a/sysdeps/generic/s_nextafter.c +++ b/sysdeps/generic/s_nextafter.c @@ -27,6 +27,7 @@ static char rcsid[] = "$NetBSD: s_nextafter.c,v 1.8 1995/05/10 20:47:58 jtc Exp #include "math.h" #include "math_private.h" +#include <float.h> #ifdef __STDC__ double __nextafter(double x, double y) @@ -70,7 +71,14 @@ static char rcsid[] = "$NetBSD: s_nextafter.c,v 1.8 1995/05/10 20:47:58 jtc Exp } } hy = hx&0x7ff00000; - if(hy>=0x7ff00000) return x+x; /* overflow */ + if(hy>=0x7ff00000) { +#if FLT_EVAL_METHOD == 0 || FLT_EVAL_METHOD == 1 + return x+x; /* overflow */ +#else + /* Note that y is either +Inf or -Inf. */ + return x+y; +#endif + } if(hy<0x00100000) { /* underflow */ y = x*x; if(y!=x) { /* raise underflow flag */ |