From 002a604fd61d1d3b8d82a5a85959ba4ebd210aec Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Sun, 26 Apr 2009 04:46:54 +0000
Subject: * 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.
---
math/libm-test.inc | 20 +++++++++++++++++---
1 file changed, 17 insertions(+), 3 deletions(-)
(limited to 'math/libm-test.inc')
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);
--
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