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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
parent64b02fd2f5fd5d2e2b7187b5e982fa6b59587500 (diff)
downloadglibc-07449987c90864fceb487994b4aaa5170803ab24.tar.gz
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')
-rw-r--r--math/Makefile2
-rw-r--r--math/bug-nextafter.c37
-rw-r--r--math/bug-nexttoward.c65
3 files changed, 102 insertions, 2 deletions
diff --git a/math/Makefile b/math/Makefile
index b8624053a8..c78a2a6d15 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -88,7 +88,7 @@ distribute += $(filter-out $(generated),$(long-m-yes:=.c) $(long-c-yes:=.c))
# Rules for the test suite.
tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \
test-misc test-fpucw tst-definitions test-tgmath test-tgmath-ret \
- bug-nextafter
+ bug-nextafter bug-nexttoward
# We do the `long double' tests only if this data type is available and
# distinct from `double'.
test-longdouble-yes = test-ldouble test-ildoubl
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;
}
diff --git a/math/bug-nexttoward.c b/math/bug-nexttoward.c
new file mode 100644
index 0000000000..e306a129c2
--- /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;
+}