[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/math/test-snan.c b/ap/libc/glibc/glibc-2.23/math/test-snan.c
new file mode 100644
index 0000000..fb1aa4d
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/math/test-snan.c
@@ -0,0 +1,145 @@
+/* Test signaling NaNs in issignaling, isnan, isinf, and similar functions.
+ Copyright (C) 2008-2016 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
+ 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/>. */
+
+#define _GNU_SOURCE 1
+#include <stdio.h>
+#include <math.h>
+#include <float.h>
+#include <fenv.h>
+#include <signal.h>
+#include <setjmp.h>
+
+#include <math-tests.h>
+
+
+static sigjmp_buf sigfpe_buf;
+
+static void
+myFPsighandler (int signal)
+{
+ siglongjmp (sigfpe_buf, 1);
+}
+
+static int errors = 0;
+
+#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 \
+NAME (void) \
+{ \
+ /* Variables are declared volatile to forbid some compiler \
+ optimizations. */ \
+ volatile FLOAT Inf_var, qNaN_var, zero_var, one_var; \
+ /* A sNaN is only guaranteed to be representable in variables with */ \
+ /* static (or thread-local) storage duration. */ \
+ static volatile FLOAT sNaN_var = __builtin_nans ## SUFFIX (""); \
+ static volatile FLOAT minus_sNaN_var = -__builtin_nans ## SUFFIX (""); \
+ fenv_t saved_fenv; \
+ \
+ zero_var = 0.0; \
+ one_var = 1.0; \
+ qNaN_var = __builtin_nan ## SUFFIX (""); \
+ Inf_var = one_var / zero_var; \
+ \
+ (void) &zero_var; \
+ (void) &one_var; \
+ (void) &qNaN_var; \
+ (void) &sNaN_var; \
+ (void) &minus_sNaN_var; \
+ (void) &Inf_var; \
+ \
+ 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, long double, l)
+#endif
+
+static int
+do_test (void)
+{
+ signal (SIGFPE, &myFPsighandler);
+
+ float_test ();
+ double_test ();
+#ifndef NO_LONG_DOUBLE
+ ldouble_test ();
+#endif
+
+ return errors != 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"