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authorUlrich Drepper <drepper@redhat.com>2003-12-07 21:22:46 +0000
committerUlrich Drepper <drepper@redhat.com>2003-12-07 21:22:46 +0000
commit07449987c90864fceb487994b4aaa5170803ab24 (patch)
tree76771090b9cb1866d55b5986c677e51dd768c3af /math/bug-nexttoward.c
parent64b02fd2f5fd5d2e2b7187b5e982fa6b59587500 (diff)
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Update.
2003-12-07 Ulrich Drepper <drepper@redhat.com> * sysdeps/i386/fpu/s_nexttowardf.c: Construct overflow value correctly. * sysdeps/i386/fpu/s_nexttoward.c: Likewise. * sysdeps/ieee754/ldbl-128/s_nexttoward.c: Likewise. * sysdeps/ieee754/ldbl-96/s_nexttoward.c: Likewise. * math/Makefile (tests): Add bug-nexttoward. * math/bug-nexttowward.c: New file. * sysdeps/generic/s_nextafter.c: Make sure overflow exception is set. * sysdeps/ieee754/flt-32/s_nextafterf.c: Likewise. * math/bug-nextafter.c (main): Add tests for overflow and negative values.
Diffstat (limited to 'math/bug-nexttoward.c')
-rw-r--r--math/bug-nexttoward.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/math/bug-nexttoward.c b/math/bug-nexttoward.c
new file mode 100644
index 0000000..e306a12
--- /dev/null
+++ b/math/bug-nexttoward.c
@@ -0,0 +1,65 @@
+#include <fenv.h>
+#include <math.h>
+#include <float.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+int
+main (void)
+{
+ int result = 0;
+
+ long double tl = (long double) FLT_MAX + 0x1.0p128L;
+ float fi = INFINITY;
+ float m = FLT_MAX;
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nexttowardf (m, tl) != fi)
+ {
+ puts ("nexttowardf+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_OVERFLOW) == 0)
+ {
+ puts ("nexttowardf+ did not overflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nexttowardf (-m, -tl) != -fi)
+ {
+ puts ("nexttowardf- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_OVERFLOW) == 0)
+ {
+ puts ("nexttowardf- did not overflow");
+ ++result;
+ }
+
+ tl = (long double) DBL_MAX + 1.0e305L;
+ double di = INFINITY;
+ double dm = DBL_MAX;
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nexttoward (dm, tl) != di)
+ {
+ puts ("nexttoward+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_OVERFLOW) == 0)
+ {
+ puts ("nexttoward+ did not overflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nexttoward (-dm, -tl) != -di)
+ {
+ puts ("nexttoward- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_OVERFLOW) == 0)
+ {
+ puts ("nexttoward- did not overflow");
+ ++result;
+ }
+
+ return result;
+}