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author | Jakub Jelinek <jakub@redhat.com> | 2007-07-31 13:33:18 +0000 |
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committer | Jakub Jelinek <jakub@redhat.com> | 2007-07-31 13:33:18 +0000 |
commit | 32c075e1f01849e161724bbd400ba77244e482cc (patch) | |
tree | 5f083a3f352104f32bb6c902d57fa3f294bd8d4d /math/bug-nextafter.c | |
parent | d6220e9ee38c1c9285221b023346201ec5f511b3 (diff) | |
download | glibc-32c075e1f01849e161724bbd400ba77244e482cc.tar.gz glibc-32c075e1f01849e161724bbd400ba77244e482cc.tar.xz glibc-32c075e1f01849e161724bbd400ba77244e482cc.zip |
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Diffstat (limited to 'math/bug-nextafter.c')
-rw-r--r-- | math/bug-nextafter.c | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/math/bug-nextafter.c b/math/bug-nextafter.c index 2a967c75bf..1d21841ea6 100644 --- a/math/bug-nextafter.c +++ b/math/bug-nextafter.c @@ -4,6 +4,9 @@ #include <stdlib.h> #include <stdio.h> +float zero = 0.0; +float inf = INFINITY; + int main (void) { @@ -34,6 +37,81 @@ main (void) ++result; } + i = 0; + m = FLT_MIN; + feclearexcept (FE_ALL_EXCEPT); + i = nextafterf (m, i); + if (i < 0 || i >= FLT_MIN) + { + puts ("nextafterf+ failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafterf+ did not underflow"); + ++result; + } + i = 0; + feclearexcept (FE_ALL_EXCEPT); + i = nextafterf (-m, -i); + if (i > 0 || i <= -FLT_MIN) + { + puts ("nextafterf- failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafterf- did not underflow"); + ++result; + } + i = -INFINITY; + feclearexcept (FE_ALL_EXCEPT); + m = nextafterf (zero, inf); + if (m < 0.0 || m >= FLT_MIN) + { + puts ("nextafterf+ failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafterf+ did not underflow"); + ++result; + } + feclearexcept (FE_ALL_EXCEPT); + if (nextafterf (m, i) != 0.0) + { + puts ("nextafterf+ failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafterf+ did not underflow"); + ++result; + } + feclearexcept (FE_ALL_EXCEPT); + m = nextafterf (copysignf (zero, -1.0), -inf); + if (m > 0.0 || m <= -FLT_MIN) + { + puts ("nextafterf- failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafterf- did not underflow"); + ++result; + } + feclearexcept (FE_ALL_EXCEPT); + if (nextafterf (m, -i) != 0.0) + { + puts ("nextafterf- failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafterf- did not underflow"); + ++result; + } + double di = INFINITY; double dm = DBL_MAX; feclearexcept (FE_ALL_EXCEPT); @@ -59,5 +137,182 @@ main (void) ++result; } + di = 0; + dm = DBL_MIN; + feclearexcept (FE_ALL_EXCEPT); + di = nextafter (dm, di); + if (di < 0 || di >= DBL_MIN) + { + puts ("nextafter+ failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafter+ did not underflow"); + ++result; + } + di = 0; + feclearexcept (FE_ALL_EXCEPT); + di = nextafter (-dm, -di); + if (di > 0 || di <= -DBL_MIN) + { + puts ("nextafter- failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafter- did not underflow"); + ++result; + } + di = -INFINITY; + feclearexcept (FE_ALL_EXCEPT); + dm = nextafter (zero, inf); + if (dm < 0.0 || dm >= DBL_MIN) + { + puts ("nextafter+ failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafter+ did not underflow"); + ++result; + } + feclearexcept (FE_ALL_EXCEPT); + if (nextafter (dm, di) != 0.0) + { + puts ("nextafter+ failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafter+ did not underflow"); + ++result; + } + feclearexcept (FE_ALL_EXCEPT); + dm = nextafter (copysign (zero, -1.0), -inf); + if (dm > 0.0 || dm <= -DBL_MIN) + { + puts ("nextafter- failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafter- did not underflow"); + ++result; + } + feclearexcept (FE_ALL_EXCEPT); + if (nextafter (dm, -di) != 0.0) + { + puts ("nextafter- failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafter- did not underflow"); + ++result; + } + +#ifndef NO_LONG_DOUBLE + long double li = INFINITY; + long double lm = LDBL_MAX; + feclearexcept (FE_ALL_EXCEPT); + if (nextafterl (lm, li) != li) + { + puts ("nextafterl+ failed"); + ++result; + } + if (fetestexcept (FE_OVERFLOW) == 0) + { + puts ("nextafterl+ did not overflow"); + ++result; + } + feclearexcept (FE_ALL_EXCEPT); + if (nextafterl (-lm, -li) != -li) + { + puts ("nextafterl failed"); + ++result; + } + if (fetestexcept (FE_OVERFLOW) == 0) + { + puts ("nextafterl- did not overflow"); + ++result; + } + + li = 0; + lm = LDBL_MIN; + feclearexcept (FE_ALL_EXCEPT); + li = nextafterl (lm, li); + if (li < 0 || li >= LDBL_MIN) + { + puts ("nextafterl+ failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafterl+ did not underflow"); + ++result; + } + li = 0; + feclearexcept (FE_ALL_EXCEPT); + li = nextafterl (-lm, -li); + if (li > 0 || li <= -LDBL_MIN) + { + puts ("nextafterl- failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafterl- did not underflow"); + ++result; + } + li = -INFINITY; + feclearexcept (FE_ALL_EXCEPT); + lm = nextafterl (zero, inf); + if (lm < 0.0 || lm >= LDBL_MIN) + { + puts ("nextafterl+ failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafterl+ did not underflow"); + ++result; + } + feclearexcept (FE_ALL_EXCEPT); + if (nextafterl (lm, li) != 0.0) + { + puts ("nextafterl+ failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafterl+ did not underflow"); + ++result; + } + feclearexcept (FE_ALL_EXCEPT); + lm = nextafterl (copysign (zero, -1.0), -inf); + if (lm > 0.0 || lm <= -LDBL_MIN) + { + puts ("nextafterl- failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafterl- did not underflow"); + ++result; + } + feclearexcept (FE_ALL_EXCEPT); + if (nextafterl (lm, -li) != 0.0) + { + puts ("nextafterl- failed"); + ++result; + } + if (fetestexcept (FE_UNDERFLOW) == 0) + { + puts ("nextafterl- did not underflow"); + ++result; + } +#endif + return result; } |