/* Test signaling NaNs in issignaling, isnan, isinf, and similar functions.
- Copyright (C) 2008-2014 Free Software Foundation, Inc.
+ Copyright (C) 2008-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
- Contributed by Andreas Jaeger <aj@suse.de>, 2005.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
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/>. */
+ <https://www.gnu.org/licenses/>. */
#define _GNU_SOURCE 1
#include <stdio.h>
-#include <stdlib.h>
-#include <sys/time.h>
-#include <string.h>
#include <math.h>
#include <float.h>
#include <fenv.h>
#include <signal.h>
#include <setjmp.h>
-#include <errno.h>
#include <math-tests.h>
-int dest_offset;
-char *dest_address;
-double value = 123.456;
-double zero = 0.0;
-
static sigjmp_buf sigfpe_buf;
-typedef long double ldouble;
-
-
-void
-myFPsighandler(int signal,
- siginfo_t *info,
- void *context)
-{
- siglongjmp(sigfpe_buf, 0);
-}
-
-int
-set_sigaction_FP(void)
+static void
+myFPsighandler (int signal)
{
- struct sigaction sa;
- /* register RT signal handler via sigaction */
- sa.sa_flags = SA_SIGINFO;
- sa.sa_sigaction = &myFPsighandler;
- sigemptyset(&sa.sa_mask);
- sigaction(SIGFPE, &sa, NULL);
-
- return 0;
-}
-
-int
-remove_sigaction_FP(void)
-{
- struct sigaction sa;
- /* restore default RT signal handler via sigaction */
- sa.sa_flags = SA_SIGINFO;
- sa.sa_handler = SIG_DFL;
- sigemptyset(&sa.sa_mask);
- sigaction(SIGFPE, &sa, NULL);
-
- return 0;
+ siglongjmp (sigfpe_buf, 1);
}
static int errors = 0;
-static void
-check (const char *testname, int result)
-{
- if (!result) {
- printf ("Failure: %s\n", testname);
- errors++;
- }
-}
+#define CHECK(testname, expr) \
+ do { \
+ feclearexcept (FE_ALL_EXCEPT); \
+ feenableexcept (FE_ALL_EXCEPT); \
+ if (sigsetjmp (sigfpe_buf, 0)) \
+ { \
+ printf ("%s raised SIGFPE\n", testname); \
+ ++errors; \
+ } \
+ else if (!(expr)) \
+ { \
+ printf ("Failure: %s\n", testname); \
+ ++errors; \
+ } \
+ } while (0)
#define TEST_FUNC(NAME, FLOAT, SUFFIX) \
static void \
(void) &minus_sNaN_var; \
(void) &Inf_var; \
\
- set_sigaction_FP (); \
- fegetenv(&saved_fenv); \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " issignaling (qNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " issignaling (qNaN)", !issignaling (qNaN_var)); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " issignaling (-qNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " issignaling (-qNaN)", !issignaling (-qNaN_var)); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " issignaling (sNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " issignaling (sNaN)", \
- SNAN_TESTS (FLOAT) ? issignaling (sNaN_var) : 1); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " issignaling (-sNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " issignaling (-sNaN)", \
- SNAN_TESTS (FLOAT) ? issignaling (minus_sNaN_var) : 1); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isnan (qNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isnan (qNaN)", isnan (qNaN_var)); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isnan (-qNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isnan (-qNaN)", isnan (-qNaN_var)); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isnan (sNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isnan (sNaN)", \
- SNAN_TESTS (FLOAT) ? isnan (sNaN_var) : 1); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isnan (-sNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isnan (-sNaN)", \
- SNAN_TESTS (FLOAT) ? isnan (minus_sNaN_var) : 1); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isinf (qNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isinf (qNaN)", !isinf (qNaN_var)); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isinf (-qNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isinf (-qNaN)", !isinf (-qNaN_var)); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isinf (sNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isinf (sNaN)", \
- SNAN_TESTS (FLOAT) ? !isinf (sNaN_var) : 1); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isinf (-sNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isinf (-sNaN)", \
- SNAN_TESTS (FLOAT) ? !isinf (minus_sNaN_var) : 1); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isfinite (qNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isfinite (qNaN)", !isfinite (qNaN_var)); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isfinite (-qNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isfinite (-qNaN)", !isfinite (-qNaN_var)); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isfinite (sNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isfinite (sNaN)", \
- SNAN_TESTS (FLOAT) ? !isfinite (sNaN_var) : 1); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isfinite (-sNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isfinite (-sNaN)", \
- SNAN_TESTS (FLOAT) ? !isfinite (minus_sNaN_var) : 1); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isnormal (qNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isnormal (qNaN)", !isnormal (qNaN_var)); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isnormal (-qNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isnormal (-qNaN)", !isnormal (-qNaN_var)); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isnormal (sNaN) isnormal SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isnormal (sNaN)", \
- SNAN_TESTS (FLOAT) ? !isnormal (sNaN_var) : 1); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " isnormal (-sNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " isnormal (-sNaN)", \
- SNAN_TESTS (FLOAT) ? !isnormal (minus_sNaN_var) : 1); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " fpclassify (qNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " fpclassify (qNaN)", (fpclassify (qNaN_var)==FP_NAN)); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " fpclassify (-qNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " fpclassify (-qNaN)", (fpclassify (-qNaN_var)==FP_NAN)); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " fpclassify (sNaN) isnormal SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " fpclassify (sNaN)", \
- SNAN_TESTS (FLOAT) ? fpclassify (sNaN_var) == FP_NAN : 1); \
- } \
- \
- feclearexcept(FE_ALL_EXCEPT); \
- feenableexcept (FE_ALL_EXCEPT); \
- if (sigsetjmp(sigfpe_buf, 0)) \
- { \
- printf (#FLOAT " fpclassify (-sNaN) raised SIGFPE\n"); \
- errors++; \
- } else { \
- check (#FLOAT " fpclassify (-sNaN)", \
- SNAN_TESTS (FLOAT) ? fpclassify (minus_sNaN_var) == FP_NAN : 1); \
- } \
- \
- fesetenv(&saved_fenv); /* restore saved fenv */ \
- remove_sigaction_FP(); \
-}
+ fegetenv (&saved_fenv); \
+ \
+ CHECK (#FLOAT " issignaling (qNaN)", !issignaling (qNaN_var)); \
+ CHECK (#FLOAT " issignaling (-qNaN)", !issignaling (-qNaN_var)); \
+ CHECK (#FLOAT " issignaling (sNaN)", \
+ SNAN_TESTS (FLOAT) ? issignaling (sNaN_var) : 1); \
+ CHECK (#FLOAT " issignaling (-sNaN)", \
+ SNAN_TESTS (FLOAT) ? issignaling (minus_sNaN_var) : 1); \
+ CHECK (#FLOAT " isnan (qNaN)", isnan (qNaN_var)); \
+ CHECK (#FLOAT " isnan (-qNaN)", isnan (-qNaN_var)); \
+ CHECK (#FLOAT " isnan (sNaN)", \
+ SNAN_TESTS (FLOAT) ? isnan (sNaN_var) : 1); \
+ CHECK (#FLOAT " isnan (-sNaN)", \
+ SNAN_TESTS (FLOAT) ? isnan (minus_sNaN_var) : 1); \
+ CHECK (#FLOAT " isinf (qNaN)", !isinf (qNaN_var)); \
+ CHECK (#FLOAT " isinf (-qNaN)", !isinf (-qNaN_var)); \
+ CHECK (#FLOAT " isinf (sNaN)", \
+ SNAN_TESTS (FLOAT) ? !isinf (sNaN_var) : 1); \
+ CHECK (#FLOAT " isinf (-sNaN)", \
+ SNAN_TESTS (FLOAT) ? !isinf (minus_sNaN_var) : 1); \
+ CHECK (#FLOAT " isfinite (qNaN)", !isfinite (qNaN_var)); \
+ CHECK (#FLOAT " isfinite (-qNaN)", !isfinite (-qNaN_var)); \
+ CHECK (#FLOAT " isfinite (sNaN)", \
+ SNAN_TESTS (FLOAT) ? !isfinite (sNaN_var) : 1); \
+ CHECK (#FLOAT " isfinite (-sNaN)", \
+ SNAN_TESTS (FLOAT) ? !isfinite (minus_sNaN_var) : 1); \
+ CHECK (#FLOAT " isnormal (qNaN)", !isnormal (qNaN_var)); \
+ CHECK (#FLOAT " isnormal (-qNaN)", !isnormal (-qNaN_var)); \
+ CHECK (#FLOAT " isnormal (sNaN)", \
+ SNAN_TESTS (FLOAT) ? !isnormal (sNaN_var) : 1); \
+ CHECK (#FLOAT " isnormal (-sNaN)", \
+ SNAN_TESTS (FLOAT) ? !isnormal (minus_sNaN_var) : 1); \
+ CHECK (#FLOAT " fpclassify (qNaN)", (fpclassify (qNaN_var)==FP_NAN)); \
+ CHECK (#FLOAT " fpclassify (-qNaN)", (fpclassify (-qNaN_var)==FP_NAN)); \
+ CHECK (#FLOAT " fpclassify (sNaN)", \
+ SNAN_TESTS (FLOAT) ? fpclassify (sNaN_var) == FP_NAN : 1); \
+ CHECK (#FLOAT " fpclassify (-sNaN)", \
+ SNAN_TESTS (FLOAT) ? fpclassify (minus_sNaN_var) == FP_NAN : 1); \
+ \
+ fesetenv (&saved_fenv); /* restore saved fenv */ \
+} \
TEST_FUNC (float_test, float, f)
TEST_FUNC (double_test, double, )
-#ifndef NO_LONG_DOUBLE
-TEST_FUNC (ldouble_test, ldouble, l)
-#endif
+TEST_FUNC (ldouble_test, long double, l)
static int
do_test (void)
{
- float_test();
- double_test();
-#ifndef NO_LONG_DOUBLE
- ldouble_test();
-#endif
+ signal (SIGFPE, &myFPsighandler);
+
+ float_test ();
+ double_test ();
+ ldouble_test ();
return errors != 0;
}
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