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2001-06-19  Andreas Jaeger  <aj@suse.de>

	* sysdeps/ieee754/ldbl-128/s_tanhl.c: New file.

	* math/libm-test.inc (tanh_test): Test for 2^-56.

	* sysdeps/ieee754/ldbl-96/s_tanhl.c (__tanhl): Make sure result
	equals argument when x < 2^-55.
	Patches by Stephen L. Moshier <moshier@na-net.ornl.gov>.
This commit is contained in:
Andreas Jaeger
2001-06-19 12:41:02 +00:00
parent ba0fd1ba02
commit 20f421e1a1
4 changed files with 16 additions and 3 deletions
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math/libm-test.inc
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@ -3975,6 +3975,9 @@ tanh_test (void)
TEST_f_f (tanh, 1.0L, 0.7615941559557648881194582826047935904L);
TEST_f_f (tanh, -1.0L, -0.7615941559557648881194582826047935904L);
/* 2^-56 */
TEST_f_f (tanh, 1.387778780781445675529539585113525390625e-17L, 1.387778780781445675529539585113525390625e-17L);
END (tanh);
}