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| author | Joseph Myers <joseph@codesourcery.com> | 2016-06-06 22:21:11 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2016-06-06 22:21:11 +0000 |
| commit | 3d8b06bc6108aa20a6591f52e7d9cbbd63c20e0a (patch) | |
| tree | 4d39272f31ecc39b6e42fa8179a4b1c8591502c2 /math | |
| parent | af5fdf5a358329161cc3960f5e54fac16dbb8063 (diff) | |
| download | glibc-3d8b06bc6108aa20a6591f52e7d9cbbd63c20e0a.zip glibc-3d8b06bc6108aa20a6591f52e7d9cbbd63c20e0a.tar.gz glibc-3d8b06bc6108aa20a6591f52e7d9cbbd63c20e0a.tar.bz2 | |
Fix dbl-64 asin (sNaN) (bug 20213).
The dbl-64 version of asin returns sNaN for sNaN arguments. This
patch fixes it to add NaN arguments to themselves so that qNaN is
returned in this case.
Tested for x86_64 and x86.
[BZ #20213]
* sysdeps/ieee754/dbl-64/e_asin.c (__ieee754_asin): Add NaN
argument to itself.
* math/libm-test.inc (asin_test_data): Add sNaN tests.
Diffstat (limited to 'math')
| -rw-r--r-- | math/libm-test.inc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/math/libm-test.inc b/math/libm-test.inc index 6981720..f9b2c8a 100644 --- a/math/libm-test.inc +++ b/math/libm-test.inc @@ -1853,6 +1853,8 @@ static const struct test_f_f_data asin_test_data[] = TEST_f_f (asin, minus_infty, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM), TEST_f_f (asin, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), TEST_f_f (asin, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_f (asin, snan_value, qnan_value, INVALID_EXCEPTION), + TEST_f_f (asin, -snan_value, qnan_value, INVALID_EXCEPTION), /* asin x == qNaN plus invalid exception for |x| > 1. */ TEST_f_f (asin, 1.125L, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM), |