aboutsummaryrefslogtreecommitdiff
path: root/math
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2009-04-26 04:46:54 +0000
committerUlrich Drepper <drepper@redhat.com>2009-04-26 04:46:54 +0000
commit002a604fd61d1d3b8d82a5a85959ba4ebd210aec (patch)
treea3988d512d41a34088190f531b8e4b5bd412ab48 /math
parent7095366d1efc6e58639f7c76d0b515212d61247d (diff)
downloadglibc-002a604fd61d1d3b8d82a5a85959ba4ebd210aec.zip
glibc-002a604fd61d1d3b8d82a5a85959ba4ebd210aec.tar.gz
glibc-002a604fd61d1d3b8d82a5a85959ba4ebd210aec.tar.bz2
* sysdeps/ieee754/k_standard.c (__kernel_standard): Use correct
errno value vor pow(+-0,neg). * math/libm-test.inc (pow_test): Add tests for errno value for pole errors.
Diffstat (limited to 'math')
-rw-r--r--math/libm-test.inc20
1 files changed, 17 insertions, 3 deletions
diff --git a/math/libm-test.inc b/math/libm-test.inc
index bed59e8..19025ec 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -4742,15 +4742,31 @@ pow_test (void)
TEST_ff_f (pow, -10.1L, 1.1L, nan_value, INVALID_EXCEPTION);
TEST_ff_f (pow, -10.1L, -1.1L, nan_value, INVALID_EXCEPTION);
+ errno = 0;
TEST_ff_f (pow, 0, -1, plus_infty, DIVIDE_BY_ZERO_EXCEPTION);
+ check_int ("errno for pow(0,-odd) == ERANGE", errno, ERANGE, 0, 0, 0);
+ errno = 0;
TEST_ff_f (pow, 0, -11, plus_infty, DIVIDE_BY_ZERO_EXCEPTION);
+ check_int ("errno for pow(0,-odd) == ERANGE", errno, ERANGE, 0, 0, 0);
+ errno = 0;
TEST_ff_f (pow, minus_zero, -1, minus_infty, DIVIDE_BY_ZERO_EXCEPTION);
- TEST_ff_f (pow, minus_zero, -11, minus_infty, DIVIDE_BY_ZERO_EXCEPTION);
+ check_int ("errno for pow(-0,-odd) == ERANGE", errno, ERANGE, 0, 0, 0);
+ errno = 0;
+ TEST_ff_f (pow, minus_zero, -11L, minus_infty, DIVIDE_BY_ZERO_EXCEPTION);
+ check_int ("errno for pow(-0,-odd) == ERANGE", errno, ERANGE, 0, 0, 0);
+ errno = 0;
TEST_ff_f (pow, 0, -2, plus_infty, DIVIDE_BY_ZERO_EXCEPTION);
+ check_int ("errno for pow(0,-even) == ERANGE", errno, ERANGE, 0, 0, 0);
+ errno = 0;
TEST_ff_f (pow, 0, -11.1L, plus_infty, DIVIDE_BY_ZERO_EXCEPTION);
+ check_int ("errno for pow(0,-num) == ERANGE", errno, ERANGE, 0, 0, 0);
+ errno = 0;
TEST_ff_f (pow, minus_zero, -2, plus_infty, DIVIDE_BY_ZERO_EXCEPTION);
+ check_int ("errno for pow(-0,-even) == ERANGE", errno, ERANGE, 0, 0, 0);
+ errno = 0;
TEST_ff_f (pow, minus_zero, -11.1L, plus_infty, DIVIDE_BY_ZERO_EXCEPTION);
+ check_int ("errno for pow(-0,-num) == ERANGE", errno, ERANGE, 0, 0, 0);
TEST_ff_f (pow, 0x1p72L, 0x1p72L, plus_infty);
TEST_ff_f (pow, 10, -0x1p72L, 0);
@@ -4763,11 +4779,9 @@ pow_test (void)
TEST_ff_f (pow, minus_zero, 1, minus_zero);
TEST_ff_f (pow, minus_zero, 11, minus_zero);
-
TEST_ff_f (pow, 0, 2, 0);
TEST_ff_f (pow, 0, 11.1L, 0);
-
TEST_ff_f (pow, minus_zero, 2, 0);
TEST_ff_f (pow, minus_zero, 11.1L, 0);
TEST_ff_f (pow, 0, plus_infty, 0);