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fenv-exceptions-tracking-c99: Add tests.
* tests/test-fenv-except-tracking-1.c: New file. * tests/test-fenv-except-tracking-2.sh: New file. * tests/test-fenv-except-tracking-2.c: New file. * tests/test-fenv-except-tracking-3.sh: New file. * tests/test-fenv-except-tracking-3.c: New file. * modules/fenv-exceptions-tracking-c99-tests: New file.
This commit is contained in:
@@ -1,5 +1,13 @@
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2023-10-28 Bruno Haible <bruno@clisp.org>
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2023-10-28 Bruno Haible <bruno@clisp.org>
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fenv-exceptions-tracking-c99: Add tests.
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* tests/test-fenv-except-tracking-1.c: New file.
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* tests/test-fenv-except-tracking-2.sh: New file.
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* tests/test-fenv-except-tracking-2.c: New file.
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* tests/test-fenv-except-tracking-3.sh: New file.
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* tests/test-fenv-except-tracking-3.c: New file.
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* modules/fenv-exceptions-tracking-c99-tests: New file.
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fenv-exceptions-tracking-c99: New module.
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fenv-exceptions-tracking-c99: New module.
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* lib/fenv.in.h (feclearexcept, feraiseexcept, fetestexcept): New
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* lib/fenv.in.h (feclearexcept, feraiseexcept, fetestexcept): New
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declarations.
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declarations.
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27
modules/fenv-exceptions-tracking-c99-tests
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27
modules/fenv-exceptions-tracking-c99-tests
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@@ -0,0 +1,27 @@
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Files:
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tests/test-fenv-except-tracking-1.c
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tests/test-fenv-except-tracking-2.sh
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tests/test-fenv-except-tracking-2.c
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tests/test-fenv-except-tracking-3.sh
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tests/test-fenv-except-tracking-3.c
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tests/macros.h
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m4/musl.m4
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Depends-on:
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fpe-trapping
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configure.ac:
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gl_MUSL_LIBC
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Makefile.am:
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TESTS += \
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test-fenv-except-tracking-1 \
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test-fenv-except-tracking-2.sh \
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test-fenv-except-tracking-3.sh
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check_PROGRAMS += \
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test-fenv-except-tracking-1 \
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test-fenv-except-tracking-2 \
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test-fenv-except-tracking-3
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test_fenv_except_tracking_1_LDADD = $(LDADD) @FENV_EXCEPTIONS_TRACKING_LIBM@
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test_fenv_except_tracking_2_LDADD = $(LDADD) @FENV_EXCEPTIONS_TRACKING_LIBM@ @FPE_TRAPPING_LIBM@
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test_fenv_except_tracking_3_LDADD = $(LDADD) @FENV_EXCEPTIONS_TRACKING_LIBM@ @FPE_TRAPPING_LIBM@
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250
tests/test-fenv-except-tracking-1.c
Normal file
250
tests/test-fenv-except-tracking-1.c
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@@ -0,0 +1,250 @@
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/* Test of tracking of floating-point exceptions.
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Copyright (C) 2023 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2023. */
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#include <config.h>
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/* Specification. */
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#include <fenv.h>
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#include "macros.h"
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static volatile double a, b, c;
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int
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main ()
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{
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/* Test setting all exception flags. */
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if (feraiseexcept (FE_ALL_EXCEPT) != 0)
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{
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fputs ("Skipping test: floating-point exceptions are not supported on this machine.\n", stderr);
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return 77;
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}
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ASSERT (/* with the libc's feraiseexcept(): */
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fetestexcept (FE_ALL_EXCEPT) == FE_ALL_EXCEPT
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|| /* with gnulib's feraiseexcept(): */
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fetestexcept (FE_ALL_EXCEPT)
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== (FE_DIVBYZERO | FE_INEXACT | FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW));
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ASSERT (fetestexcept (FE_INVALID) == FE_INVALID);
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ASSERT (fetestexcept (FE_DIVBYZERO) == FE_DIVBYZERO);
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ASSERT (fetestexcept (FE_OVERFLOW) == FE_OVERFLOW);
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ASSERT (fetestexcept (FE_UNDERFLOW) == FE_UNDERFLOW);
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ASSERT (fetestexcept (FE_INEXACT) == FE_INEXACT);
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/* Test clearing all exception flags. */
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ASSERT (feclearexcept (FE_ALL_EXCEPT) == 0);
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ASSERT (fetestexcept (FE_ALL_EXCEPT) == 0);
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ASSERT (fetestexcept (FE_INVALID) == 0);
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ASSERT (fetestexcept (FE_DIVBYZERO) == 0);
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ASSERT (fetestexcept (FE_OVERFLOW) == 0);
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ASSERT (fetestexcept (FE_UNDERFLOW) == 0);
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ASSERT (fetestexcept (FE_INEXACT) == 0);
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/* Test setting just one exception flag: FE_INVALID. */
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ASSERT (feclearexcept (FE_ALL_EXCEPT) == 0);
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ASSERT (feraiseexcept (FE_INVALID) == 0);
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ASSERT (fetestexcept (FE_ALL_EXCEPT) == FE_INVALID);
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ASSERT (fetestexcept (FE_INVALID) == FE_INVALID);
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ASSERT (fetestexcept (FE_DIVBYZERO) == 0);
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ASSERT (fetestexcept (FE_OVERFLOW) == 0);
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ASSERT (fetestexcept (FE_UNDERFLOW) == 0);
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ASSERT (fetestexcept (FE_INEXACT) == 0);
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/* Test setting just one exception flag: FE_DIVBYZERO. */
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ASSERT (feclearexcept (FE_ALL_EXCEPT) == 0);
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ASSERT (feraiseexcept (FE_DIVBYZERO) == 0);
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ASSERT (fetestexcept (FE_ALL_EXCEPT) == FE_DIVBYZERO);
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ASSERT (fetestexcept (FE_INVALID) == 0);
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ASSERT (fetestexcept (FE_DIVBYZERO) == FE_DIVBYZERO);
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ASSERT (fetestexcept (FE_OVERFLOW) == 0);
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ASSERT (fetestexcept (FE_UNDERFLOW) == 0);
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ASSERT (fetestexcept (FE_INEXACT) == 0);
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/* Test setting just one exception flag: FE_OVERFLOW.
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On many architectures, this has the side-effect of also setting FE_INEXACT:
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arm64, arm, alpha, hppa, ia64, loongarch64, s390, sh, sparc. */
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ASSERT (feclearexcept (FE_ALL_EXCEPT) == 0);
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ASSERT (feraiseexcept (FE_OVERFLOW) == 0);
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ASSERT ((fetestexcept (FE_ALL_EXCEPT) & ~FE_INEXACT) == FE_OVERFLOW);
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ASSERT (fetestexcept (FE_INVALID) == 0);
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ASSERT (fetestexcept (FE_DIVBYZERO) == 0);
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ASSERT (fetestexcept (FE_OVERFLOW) == FE_OVERFLOW);
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ASSERT (fetestexcept (FE_UNDERFLOW) == 0);
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/* Test setting just one exception flag: FE_UNDERFLOW.
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On many architectures, this has the side-effect of also setting FE_INEXACT:
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arm64, arm, alpha, hppa, ia64, loongarch64, s390, sh, sparc. */
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ASSERT (feclearexcept (FE_ALL_EXCEPT) == 0);
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ASSERT (feraiseexcept (FE_UNDERFLOW) == 0);
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ASSERT ((fetestexcept (FE_ALL_EXCEPT) & ~FE_INEXACT) == FE_UNDERFLOW);
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ASSERT (fetestexcept (FE_INVALID) == 0);
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ASSERT (fetestexcept (FE_DIVBYZERO) == 0);
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ASSERT (fetestexcept (FE_OVERFLOW) == 0);
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ASSERT (fetestexcept (FE_UNDERFLOW) == FE_UNDERFLOW);
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/* Test setting just one exception flag: FE_INEXACT. */
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ASSERT (feclearexcept (FE_ALL_EXCEPT) == 0);
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ASSERT (feraiseexcept (FE_INEXACT) == 0);
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ASSERT (fetestexcept (FE_ALL_EXCEPT) == FE_INEXACT);
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ASSERT (fetestexcept (FE_INVALID) == 0);
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ASSERT (fetestexcept (FE_DIVBYZERO) == 0);
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ASSERT (fetestexcept (FE_OVERFLOW) == 0);
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ASSERT (fetestexcept (FE_UNDERFLOW) == 0);
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ASSERT (fetestexcept (FE_INEXACT) == FE_INEXACT);
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/* Test clearing just one exception flag: FE_INVALID. */
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ASSERT (feraiseexcept (FE_ALL_EXCEPT) == 0);
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ASSERT (feclearexcept (FE_INVALID) == 0);
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ASSERT (/* with the libc's feraiseexcept(): */
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fetestexcept (FE_ALL_EXCEPT) == (FE_ALL_EXCEPT & ~FE_INVALID)
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|| /* with gnulib's feraiseexcept(): */
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fetestexcept (FE_ALL_EXCEPT)
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== (FE_DIVBYZERO | FE_INEXACT | FE_OVERFLOW | FE_UNDERFLOW));
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ASSERT (fetestexcept (FE_INVALID) == 0);
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ASSERT (fetestexcept (FE_DIVBYZERO) == FE_DIVBYZERO);
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ASSERT (fetestexcept (FE_OVERFLOW) == FE_OVERFLOW);
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ASSERT (fetestexcept (FE_UNDERFLOW) == FE_UNDERFLOW);
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ASSERT (fetestexcept (FE_INEXACT) == FE_INEXACT);
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/* Test clearing just one exception flag: FE_DIVBYZERO. */
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ASSERT (feraiseexcept (FE_ALL_EXCEPT) == 0);
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ASSERT (feclearexcept (FE_DIVBYZERO) == 0);
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ASSERT (/* with the libc's feraiseexcept(): */
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fetestexcept (FE_ALL_EXCEPT) == (FE_ALL_EXCEPT & ~FE_DIVBYZERO)
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|| /* with gnulib's feraiseexcept(): */
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fetestexcept (FE_ALL_EXCEPT)
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== (FE_INEXACT | FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW));
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ASSERT (fetestexcept (FE_INVALID) == FE_INVALID);
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ASSERT (fetestexcept (FE_DIVBYZERO) == 0);
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ASSERT (fetestexcept (FE_OVERFLOW) == FE_OVERFLOW);
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ASSERT (fetestexcept (FE_UNDERFLOW) == FE_UNDERFLOW);
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ASSERT (fetestexcept (FE_INEXACT) == FE_INEXACT);
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/* Test clearing just one exception flag: FE_OVERFLOW. */
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ASSERT (feraiseexcept (FE_ALL_EXCEPT) == 0);
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ASSERT (feclearexcept (FE_OVERFLOW) == 0);
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ASSERT (/* with the libc's feraiseexcept(): */
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fetestexcept (FE_ALL_EXCEPT) == (FE_ALL_EXCEPT & ~FE_OVERFLOW)
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|| /* with gnulib's feraiseexcept(): */
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fetestexcept (FE_ALL_EXCEPT)
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== (FE_DIVBYZERO | FE_INEXACT | FE_INVALID | FE_UNDERFLOW));
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ASSERT (fetestexcept (FE_INVALID) == FE_INVALID);
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ASSERT (fetestexcept (FE_DIVBYZERO) == FE_DIVBYZERO);
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ASSERT (fetestexcept (FE_OVERFLOW) == 0);
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ASSERT (fetestexcept (FE_UNDERFLOW) == FE_UNDERFLOW);
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ASSERT (fetestexcept (FE_INEXACT) == FE_INEXACT);
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/* Test clearing just one exception flag: FE_UNDERFLOW. */
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ASSERT (feraiseexcept (FE_ALL_EXCEPT) == 0);
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ASSERT (feclearexcept (FE_UNDERFLOW) == 0);
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ASSERT (/* with the libc's feraiseexcept(): */
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fetestexcept (FE_ALL_EXCEPT) == (FE_ALL_EXCEPT & ~FE_UNDERFLOW)
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|| /* with gnulib's feraiseexcept(): */
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fetestexcept (FE_ALL_EXCEPT)
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== (FE_DIVBYZERO | FE_INEXACT | FE_INVALID | FE_OVERFLOW));
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ASSERT (fetestexcept (FE_INVALID) == FE_INVALID);
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ASSERT (fetestexcept (FE_DIVBYZERO) == FE_DIVBYZERO);
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ASSERT (fetestexcept (FE_OVERFLOW) == FE_OVERFLOW);
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ASSERT (fetestexcept (FE_UNDERFLOW) == 0);
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ASSERT (fetestexcept (FE_INEXACT) == FE_INEXACT);
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/* Test clearing just one exception flag: FE_INEXACT. */
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ASSERT (feraiseexcept (FE_ALL_EXCEPT) == 0);
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ASSERT (feclearexcept (FE_INEXACT) == 0);
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ASSERT (/* with the libc's feraiseexcept(): */
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fetestexcept (FE_ALL_EXCEPT) == (FE_ALL_EXCEPT & ~FE_INEXACT)
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|| /* with gnulib's feraiseexcept(): */
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fetestexcept (FE_ALL_EXCEPT)
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== (FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW));
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ASSERT (fetestexcept (FE_INVALID) == FE_INVALID);
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ASSERT (fetestexcept (FE_DIVBYZERO) == FE_DIVBYZERO);
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ASSERT (fetestexcept (FE_OVERFLOW) == FE_OVERFLOW);
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ASSERT (fetestexcept (FE_UNDERFLOW) == FE_UNDERFLOW);
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ASSERT (fetestexcept (FE_INEXACT) == 0);
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#if !(defined __arm__ && defined __SOFTFP__)
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/* Test the effects of an operation that produces FE_INVALID. */
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ASSERT (feclearexcept (FE_ALL_EXCEPT) == 0);
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a = 0; b = 0; c = a / b;
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ASSERT (fetestexcept (FE_ALL_EXCEPT) == FE_INVALID);
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ASSERT (fetestexcept (FE_INVALID) == FE_INVALID);
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ASSERT (fetestexcept (FE_DIVBYZERO) == 0);
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ASSERT (fetestexcept (FE_OVERFLOW) == 0);
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|
ASSERT (fetestexcept (FE_UNDERFLOW) == 0);
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ASSERT (fetestexcept (FE_INEXACT) == 0);
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|
|
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|
/* Test the effects of an operation that produces FE_DIVBYZERO. */
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|
ASSERT (feclearexcept (FE_ALL_EXCEPT) == 0);
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|
a = 3; b = 0; c = a / b;
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|
ASSERT (fetestexcept (FE_ALL_EXCEPT) == FE_DIVBYZERO);
|
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|
ASSERT (fetestexcept (FE_INVALID) == 0);
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|
ASSERT (fetestexcept (FE_DIVBYZERO) == FE_DIVBYZERO);
|
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|
ASSERT (fetestexcept (FE_OVERFLOW) == 0);
|
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|
ASSERT (fetestexcept (FE_UNDERFLOW) == 0);
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|
ASSERT (fetestexcept (FE_INEXACT) == 0);
|
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|
|
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|
/* Test the effects of an operation that produces FE_OVERFLOW. */
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|
ASSERT (feclearexcept (FE_ALL_EXCEPT) == 0);
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|
a = 1; for (int i = 0; i < 800; i++) a = 2.0 * a;
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|
b = 1; for (int i = 0; i < 700; i++) b = 2.0 * b;
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|
c = a * b;
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|
{
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|
int exc = fetestexcept (FE_ALL_EXCEPT);
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|
ASSERT ((FE_OVERFLOW & !exc) == 0);
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|
ASSERT ((exc & ~(FE_OVERFLOW | FE_INEXACT)) == 0);
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|
}
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|
ASSERT (fetestexcept (FE_INVALID) == 0);
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|
ASSERT (fetestexcept (FE_DIVBYZERO) == 0);
|
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|
ASSERT (fetestexcept (FE_OVERFLOW) == FE_OVERFLOW);
|
||||||
|
ASSERT (fetestexcept (FE_UNDERFLOW) == 0);
|
||||||
|
|
||||||
|
/* Test the effects of an operation that produces FE_UNDERFLOW. */
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|
ASSERT (feclearexcept (FE_ALL_EXCEPT) == 0);
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|
a = 1; for (int i = 0; i < 800; i++) a = 0.5 * a;
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|
b = 1; for (int i = 0; i < 700; i++) b = 0.5 * b;
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|
c = a * b;
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|
{
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|
int exc = fetestexcept (FE_ALL_EXCEPT);
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|
ASSERT ((FE_UNDERFLOW & !exc) == 0);
|
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|
ASSERT ((exc & ~(FE_UNDERFLOW | FE_INEXACT)) == 0);
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|
}
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|
ASSERT (fetestexcept (FE_INVALID) == 0);
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|
ASSERT (fetestexcept (FE_DIVBYZERO) == 0);
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|
ASSERT (fetestexcept (FE_OVERFLOW) == 0);
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||||||
|
ASSERT (fetestexcept (FE_UNDERFLOW) == FE_UNDERFLOW);
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||||||
|
|
||||||
|
/* On alpha, this test works only when compiled with the GCC option
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|
'-mieee-with-inexact'. */
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|
# if !defined __alpha
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|
/* Test the effects of an operation that produces FE_INEXACT. */
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|
ASSERT (feclearexcept (FE_ALL_EXCEPT) == 0);
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|
a = 1; b = 3; c = a / b;
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|
ASSERT (fetestexcept (FE_ALL_EXCEPT) == FE_INEXACT);
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|
ASSERT (fetestexcept (FE_INVALID) == 0);
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|
ASSERT (fetestexcept (FE_DIVBYZERO) == 0);
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|
ASSERT (fetestexcept (FE_OVERFLOW) == 0);
|
||||||
|
ASSERT (fetestexcept (FE_UNDERFLOW) == 0);
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||||||
|
ASSERT (fetestexcept (FE_INEXACT) == FE_INEXACT);
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|
# endif
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|
#endif
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||||||
|
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
101
tests/test-fenv-except-tracking-2.c
Normal file
101
tests/test-fenv-except-tracking-2.c
Normal file
@@ -0,0 +1,101 @@
|
|||||||
|
/* Test of tracking of floating-point exceptions.
|
||||||
|
Copyright (C) 2023 Free Software Foundation, Inc.
|
||||||
|
|
||||||
|
This program is free software: you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation, either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
This program 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 General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
||||||
|
|
||||||
|
/* Written by Bruno Haible <bruno@clisp.org>, 2023. */
|
||||||
|
|
||||||
|
#include <config.h>
|
||||||
|
|
||||||
|
/* Specification. */
|
||||||
|
#include <fenv.h>
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
#include "fpe-trapping.h"
|
||||||
|
#include "macros.h"
|
||||||
|
|
||||||
|
#if HAVE_FPE_TRAPPING
|
||||||
|
|
||||||
|
/* Check that triggering a floating-point operation can trigger a trap. */
|
||||||
|
|
||||||
|
int
|
||||||
|
main (int argc, char *argv[])
|
||||||
|
{
|
||||||
|
/* Clear FE_INVALID exceptions from past operations. */
|
||||||
|
feclearexcept (FE_INVALID);
|
||||||
|
|
||||||
|
/* An FE_INVALID exception shall trigger a SIGFPE signal, which by default
|
||||||
|
terminates the program. */
|
||||||
|
if (sigfpe_on_invalid () < 0)
|
||||||
|
{
|
||||||
|
fputs ("Skipping test: trapping floating-point exceptions are not supported on this machine.\n", stderr);
|
||||||
|
return 77;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (argc > 1)
|
||||||
|
switch (argv[1][0])
|
||||||
|
{
|
||||||
|
case 'f':
|
||||||
|
{
|
||||||
|
volatile float a, b;
|
||||||
|
_GL_UNUSED volatile float c;
|
||||||
|
a = 0; b = 0; c = a / b;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 'd':
|
||||||
|
{
|
||||||
|
volatile double a, b;
|
||||||
|
_GL_UNUSED volatile double c;
|
||||||
|
a = 0; b = 0; c = a / b;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 'l':
|
||||||
|
/* This test does not work on Linux/loongarch64 with glibc 2.37.
|
||||||
|
Likewise on Linux/alpha with glibc 2.7 on Linux 2.6.26.
|
||||||
|
Likewise on FreeBSD 12.2/sparc.
|
||||||
|
Cause unknown. */
|
||||||
|
#if !((__GLIBC__ >= 2 && defined __loongarch__) \
|
||||||
|
|| ((__GLIBC__ == 2 && __GLIBC_MINOR__ < 36) && defined __alpha) \
|
||||||
|
|| (defined __FreeBSD__ && defined __sparc))
|
||||||
|
{
|
||||||
|
volatile long double a, b;
|
||||||
|
_GL_UNUSED volatile long double c;
|
||||||
|
a = 0; b = 0; c = a / b;
|
||||||
|
}
|
||||||
|
#else
|
||||||
|
fputs ("Skipping test: known failure on this platform\n", stderr);
|
||||||
|
return 77;
|
||||||
|
#endif
|
||||||
|
break;
|
||||||
|
|
||||||
|
default:
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
#else
|
||||||
|
|
||||||
|
int
|
||||||
|
main ()
|
||||||
|
{
|
||||||
|
fputs ("Skipping test: feenableexcept or fpsetmask or fp_enable not available\n", stderr);
|
||||||
|
return 77;
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif
|
20
tests/test-fenv-except-tracking-2.sh
Executable file
20
tests/test-fenv-except-tracking-2.sh
Executable file
@@ -0,0 +1,20 @@
|
|||||||
|
#!/bin/sh
|
||||||
|
|
||||||
|
# Test that a floating-point operation can trigger a trap.
|
||||||
|
|
||||||
|
final_rc=0
|
||||||
|
|
||||||
|
for arg in f d l; do
|
||||||
|
${CHECKER} ./test-fenv-except-tracking-2${EXEEXT} $arg
|
||||||
|
rc=$?
|
||||||
|
if test $rc = 77; then
|
||||||
|
final_rc=77
|
||||||
|
else
|
||||||
|
if test $rc = 0; then
|
||||||
|
echo "Failed: ./test-fenv-except-tracking-2 $arg" 1>&2
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
done
|
||||||
|
|
||||||
|
exit $final_rc
|
64
tests/test-fenv-except-tracking-3.c
Normal file
64
tests/test-fenv-except-tracking-3.c
Normal file
@@ -0,0 +1,64 @@
|
|||||||
|
/* Test of tracking of floating-point exceptions.
|
||||||
|
Copyright (C) 2023 Free Software Foundation, Inc.
|
||||||
|
|
||||||
|
This program is free software: you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation, either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
This program 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 General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
||||||
|
|
||||||
|
/* Written by Bruno Haible <bruno@clisp.org>, 2023. */
|
||||||
|
|
||||||
|
#include <config.h>
|
||||||
|
|
||||||
|
/* Specification. */
|
||||||
|
#include <fenv.h>
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
#include "fpe-trapping.h"
|
||||||
|
#include "macros.h"
|
||||||
|
|
||||||
|
/* musl libc does not support floating-point exception trapping, even where
|
||||||
|
the hardware supports it. See
|
||||||
|
<https://wiki.musl-libc.org/functional-differences-from-glibc.html> */
|
||||||
|
#if HAVE_FPE_TRAPPING && (!MUSL_LIBC || GNULIB_FEENABLEEXCEPT)
|
||||||
|
|
||||||
|
/* Check that feraiseexcept() can trigger a trap. */
|
||||||
|
|
||||||
|
int
|
||||||
|
main ()
|
||||||
|
{
|
||||||
|
/* Clear FE_INVALID exceptions from past operations. */
|
||||||
|
feclearexcept (FE_INVALID);
|
||||||
|
|
||||||
|
/* An FE_INVALID exception shall trigger a SIGFPE signal, which by default
|
||||||
|
terminates the program. */
|
||||||
|
if (sigfpe_on_invalid () < 0)
|
||||||
|
{
|
||||||
|
fputs ("Skipping test: trapping floating-point exceptions are not supported on this machine.\n", stderr);
|
||||||
|
return 77;
|
||||||
|
}
|
||||||
|
|
||||||
|
feraiseexcept (FE_INVALID);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
#else
|
||||||
|
|
||||||
|
int
|
||||||
|
main ()
|
||||||
|
{
|
||||||
|
fputs ("Skipping test: feenableexcept or fpsetmask or fp_enable not available\n", stderr);
|
||||||
|
return 77;
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif
|
18
tests/test-fenv-except-tracking-3.sh
Executable file
18
tests/test-fenv-except-tracking-3.sh
Executable file
@@ -0,0 +1,18 @@
|
|||||||
|
#!/bin/sh
|
||||||
|
|
||||||
|
# Test that feraiseexcept() can trigger a trap.
|
||||||
|
|
||||||
|
final_rc=0
|
||||||
|
|
||||||
|
${CHECKER} ./test-fenv-except-tracking-3${EXEEXT}
|
||||||
|
rc=$?
|
||||||
|
if test $rc = 77; then
|
||||||
|
final_rc=77
|
||||||
|
else
|
||||||
|
if test $rc = 0; then
|
||||||
|
echo "Failed: ./test-fenv-except-tracking-3" 1>&2
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
exit $final_rc
|
Reference in New Issue
Block a user