diff options
Diffstat (limited to 'math/bug-nextafter.c')
| -rw-r--r-- | math/bug-nextafter.c | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/math/bug-nextafter.c b/math/bug-nextafter.c index 8aa849df19..015c32dd93 100644 --- a/math/bug-nextafter.c +++ b/math/bug-nextafter.c @@ -1,3 +1,4 @@ +#include <fenv.h> #include <math.h> #include <float.h> #include <stdlib.h> @@ -10,19 +11,53 @@ main (void) float i = INFINITY; float m = FLT_MAX; + feclearexcept (FE_ALL_EXCEPT); if (nextafterf (m, i) != i) { - puts ("nextafterf failed"); + puts ("nextafterf+ failed"); + ++result; + } + if (fetestexcept (FE_OVERFLOW) != 0) + { + puts ("nextafterf+ did not overflow"); + ++result; + } + feclearexcept (FE_ALL_EXCEPT); + if (nextafterf (-m, -i) != -i) + { + puts ("nextafterf- failed"); + ++result; + } + if (fetestexcept (FE_OVERFLOW) != 0) + { + puts ("nextafterf- did not overflow"); ++result; } double di = INFINITY; double dm = DBL_MAX; + feclearexcept (FE_ALL_EXCEPT); if (nextafter (dm, di) != di) { + puts ("nextafter+ failed"); + ++result; + } + if (fetestexcept (FE_OVERFLOW) != 0) + { + puts ("nextafter+ did not overflow"); + ++result; + } + feclearexcept (FE_ALL_EXCEPT); + if (nextafter (-dm, -di) != -di) + { puts ("nextafter failed"); ++result; } + if (fetestexcept (FE_OVERFLOW) != 0) + { + puts ("nextafter- did not overflow"); + ++result; + } return result; } |