diff options
Diffstat (limited to 'libquadmath/math/nextafterq.c')
| -rw-r--r-- | libquadmath/math/nextafterq.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/libquadmath/math/nextafterq.c b/libquadmath/math/nextafterq.c index 04d63deb8e2..a030e9c6444 100644 --- a/libquadmath/math/nextafterq.c +++ b/libquadmath/math/nextafterq.c @@ -13,6 +13,7 @@ * ==================================================== */ +#include <errno.h> #include "quadmath-imp.h" __float128 @@ -54,9 +55,15 @@ nextafterq (__float128 x, __float128 y) } } hy = hx&0x7fff000000000000LL; - if(hy==0x7fff000000000000LL) return x+x;/* overflow */ + if(hy==0x7fff000000000000LL) { + __float128 u = x + x; /* overflow */ + math_force_eval (u); + errno = ERANGE; + } if(hy==0) { - /* here we should raise an underflow flag */ + __float128 u = x*x; /* underflow */ + math_force_eval (u); /* raise underflow flag */ + errno = ERANGE; } SET_FLT128_WORDS64(x,hx,lx); return x; |