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Add tests for underflow exception bugs 10846, 14036
- From: "Joseph S. Myers" <joseph at codesourcery dot com>
- To: libc-alpha at sourceware dot org
- Date: Thu, 24 May 2012 14:57:24 +0000 (UTC)
- Subject: Add tests for underflow exception bugs 10846, 14036
Now that libm-test.inc can test underflow exceptions, I propose this
patch to add tests for two bugs about missing underflow exceptions
(fixed by the changes to use -frounding-math). Tested x86 and x86_64.
2012-05-24 Joseph Myers <joseph@codesourcery.com>
[BZ #10846]
[BZ #14036]
* math/libm-test.inc (exp_test): Add test from bug 14036.
(pow_test): Add test from bug 10846.
diff --git a/math/libm-test.inc b/math/libm-test.inc
index 5424866..f545723 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -3501,6 +3501,7 @@ exp_test (void)
#if !(defined TEST_LDOUBLE && LDBL_MAX_EXP > 1024)
TEST_f_f (exp, 710, plus_infty, OVERFLOW_EXCEPTION);
+ TEST_f_f (exp, -1234, plus_zero, UNDERFLOW_EXCEPTION);
#endif
TEST_f_f (exp, 1e5, plus_infty, OVERFLOW_EXCEPTION);
TEST_f_f (exp, max_value, plus_infty, OVERFLOW_EXCEPTION);
@@ -6732,6 +6733,8 @@ pow_test (void)
TEST_ff_f (pow, 0x1.0000000000001p0L, -0x1.23456789abcdfp61L, 1.0118762747828234466621210689458255908670e-253L);
#endif
+ TEST_ff_f (pow, 2.0L, -100000.0L, plus_zero, UNDERFLOW_EXCEPTION);
+
END (pow);
}
--
Joseph S. Myers
joseph@codesourcery.com