diff options
Diffstat (limited to 'math')
| -rw-r--r-- | math/Makefile | 3 | ||||
| -rw-r--r-- | math/test-nearbyint-except-2.c | 72 |
2 files changed, 74 insertions, 1 deletions
diff --git a/math/Makefile b/math/Makefile index ec9e6b29d1..06412f3980 100644 --- a/math/Makefile +++ b/math/Makefile @@ -109,7 +109,8 @@ tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \ test-tgmath-int test-tgmath2 test-powl tst-CMPLX tst-CMPLX2 test-snan \ test-fenv-tls test-fenv-preserve test-fenv-return test-fenvinline \ test-nearbyint-except test-fenv-clear test-signgam-finite \ - test-signgam-finite-c99 test-signgam-finite-c11 $(tests-static) + test-signgam-finite-c99 test-signgam-finite-c11 \ + test-nearbyint-except-2 $(tests-static) tests-static = test-fpucw-static test-fpucw-ieee-static # We do the `long double' tests only if this data type is available and # distinct from `double'. diff --git a/math/test-nearbyint-except-2.c b/math/test-nearbyint-except-2.c new file mode 100644 index 0000000000..04faac309d --- /dev/null +++ b/math/test-nearbyint-except-2.c @@ -0,0 +1,72 @@ +/* Test nearbyint functions do not disable exception traps (bug 19228). + Copyright (C) 2015 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <fenv.h> +#include <math.h> +#include <stdio.h> + +#ifndef FE_INEXACT +# define FE_INEXACT 0 +#endif + +#define TEST_FUNC(NAME, FLOAT, SUFFIX) \ +static int \ +NAME (void) \ +{ \ + int result = 0; \ + volatile FLOAT a, b __attribute__ ((unused)); \ + a = 1.5; \ + /* nearbyint must work when traps on "inexact" are enabled. */ \ + b = nearbyint ## SUFFIX (a); \ + /* And it must have left those traps enabled. */ \ + if (fegetexcept () == FE_INEXACT) \ + puts ("PASS: " #FLOAT); \ + else \ + { \ + puts ("FAIL: " #FLOAT); \ + result = 1; \ + } \ + return result; \ +} + +TEST_FUNC (float_test, float, f) +TEST_FUNC (double_test, double, ) +#ifndef NO_LONG_DOUBLE +TEST_FUNC (ldouble_test, long double, l) +#endif + +static int +do_test (void) +{ + if (feenableexcept (FE_INEXACT) == -1) + { + puts ("enabling FE_INEXACT traps failed, cannot test"); + return 77; + } + int result = float_test (); + feenableexcept (FE_INEXACT); + result |= double_test (); +#ifndef NO_LONG_DOUBLE + feenableexcept (FE_INEXACT); + result |= ldouble_test (); +#endif + return result; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |