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authorUlrich Drepper <drepper@redhat.com>2003-12-07 03:25:24 +0000
committerUlrich Drepper <drepper@redhat.com>2003-12-07 03:25:24 +0000
commit64b02fd2f5fd5d2e2b7187b5e982fa6b59587500 (patch)
tree8b833557f08e0d9088bfbeb20af3389680cdc87f /math
parent57d20ee7f27850f2c14e7eeb1e64807e6431d469 (diff)
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Update.
2003-12-06 Ulrich Drepper <drepper@redhat.com> * math/Makefile (tests): Add bug-nextafter. * math/bug-nextafter.c: New file. * sysdeps/generic/s_nextafter.c: Construct overflow value correctly. * sysdeps/ieee754/flt-32/s_nextafterf.c: Likewise. * math/libm-test.inc (nextafter_test): Add test for overflow after +/-FLT_MAX etc.
Diffstat (limited to 'math')
-rw-r--r--math/Makefile3
-rw-r--r--math/bug-nextafter.c28
-rw-r--r--math/libm-test.inc5
3 files changed, 35 insertions, 1 deletions
diff --git a/math/Makefile b/math/Makefile
index d04269d298..b8624053a8 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -87,7 +87,8 @@ 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
+ test-misc test-fpucw tst-definitions test-tgmath test-tgmath-ret \
+ bug-nextafter
# 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
new file mode 100644
index 0000000000..8aa849df19
--- /dev/null
+++ b/math/bug-nextafter.c
@@ -0,0 +1,28 @@
+#include <math.h>
+#include <float.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+int
+main (void)
+{
+ int result = 0;
+
+ float i = INFINITY;
+ float m = FLT_MAX;
+ if (nextafterf (m, i) != i)
+ {
+ puts ("nextafterf failed");
+ ++result;
+ }
+
+ double di = INFINITY;
+ double dm = DBL_MAX;
+ if (nextafter (dm, di) != di)
+ {
+ puts ("nextafter failed");
+ ++result;
+ }
+
+ return result;
+}
diff --git a/math/libm-test.inc b/math/libm-test.inc
index 69752e00d5..38386c1ed5 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -3437,6 +3437,11 @@ nextafter_test (void)
TEST_ff_f (nextafter, 1.1L, nan_value, nan_value);
TEST_ff_f (nextafter, nan_value, nan_value, nan_value);
+ FLOAT fltmax = CHOOSE (LDBL_MAX, DBL_MAX, FLT_MAX,
+ LDBL_MAX, DBL_MAX, FLT_MAX);
+ TEST_ff_f (nextafter, fltmax, plus_infty, plus_infty);
+ TEST_ff_f (nextafter, -fltmax, minus_infty, minus_infty);
+
#ifdef TEST_LDOUBLE
// XXX Enable once gcc is fixed.
//TEST_ff_f (nextafter, 0x0.00000040000000000000p-16385L, -0.1L, 0x0.0000003ffffffff00000p-16385L);