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authorJoseph Myers <joseph@codesourcery.com>2012-04-09 09:43:18 +0000
committerJoseph Myers <joseph@codesourcery.com>2012-04-09 09:43:18 +0000
commitd7dd94539899466a9a4e38c61ab846ffcb314dad (patch)
tree30a319648bb4afe4e4296d2e77cb7bbf8084893d /ChangeLog
parentc483f6b4a4277bc209820efc1ae35d976af57b4e (diff)
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Fix missing overflow exceptions from pow (bug 13873).
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 2012-04-09  Joseph Myers  <joseph@codesourcery.com>
 
+	[BZ #13873]
+	* sysdeps/ieee754/dbl-64/e_pow.c (huge, tiny): New variables.
+	(__ieee754_pow): Generate overflow and underflow using huge*huge
+	and tiny*tiny rather than just returning constant infinity or zero
+	for large exponents.
+	* math/libm-test.inc (pow_test): Require overflow exceptions for
+	applicable cases of large exponents.
+
 	[BZ #706]
 	* sysdeps/i386/fpu/e_pow.S (p10): New object.
 	(__ieee754_pow): Use iterative multiplication algorithm only for