Author: sebor
Date: Wed Nov 9 17:43:04 2005
New Revision: 332193
URL: http://svn.apache.org/viewcvs?rev=332193&view=rev
Log:
2005-11-09 Martin Sebor <[EMAIL PROTECTED]>
* 18.limits.traps.cpp: New test exercising numeric_limits::traps.
Added:
incubator/stdcxx/trunk/tests/support/
incubator/stdcxx/trunk/tests/support/18.limits.traps.cpp (with props)
Added: incubator/stdcxx/trunk/tests/support/18.limits.traps.cpp
URL:
http://svn.apache.org/viewcvs/incubator/stdcxx/trunk/tests/support/18.limits.traps.cpp?rev=332193&view=auto
==============================================================================
--- incubator/stdcxx/trunk/tests/support/18.limits.traps.cpp (added)
+++ incubator/stdcxx/trunk/tests/support/18.limits.traps.cpp Wed Nov 9
17:43:04 2005
@@ -0,0 +1,152 @@
+/***************************************************************************
+ *
+ * limits.traps.cpp - test exercising std::numeric_limits::traps
+ *
+ * $Id: //stdlib/dev/tests/stdlib/support/limits_traps.cpp#1 $
+ *
+ ***************************************************************************
+ *
+ * Copyright (c) 1994-2005 Quovadx, Inc., acting through its Rogue Wave
+ * Software division. Licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0. Unless required by
+ * applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, either express or implied. See the License
+ * for the specific language governing permissions and limitations under
+ * the License.
+ *
+ **************************************************************************/
+
+#include <limits>
+
+#include <csetjmp> // for longjmp, setjmp
+#include <csignal> // for SIGFPE, SIGTRAP, signal
+
+#include <driver.h>
+
+/**************************************************************************/
+
+std::jmp_buf jmp_env;
+
+extern "C" {
+
+void handle_fpe (int)
+{
+ std::longjmp (jmp_env, 1);
+}
+
+void handle_trap (int)
+{
+ std::longjmp (jmp_env, 1);
+}
+
+} // extern "C"
+
+/**************************************************************************/
+
+template <class numT>
+numT test_traps (numT, const char *tname, int lineno, bool floating)
+{
+ const bool traps = std::numeric_limits<numT>::traps;
+
+ _RWSTD_UNUSED (floating);
+
+#ifdef SIGFPE
+ std::signal (SIGFPE, handle_fpe);
+#else // if !defined (SIGFPE)
+ if (!rw_warn (!traps || !floating, 0, lineno,
+ "SIGFPE not #defined and numeric_limits<%s>::traps == true, "
+ "cannot test", tname)) {
+ return numT ();
+ }
+#endif // SIGFPE
+
+#ifdef SIGTRAP
+ std::signal (SIGTRAP, handle_trap);
+#else // if !defined (SIGTRAP)
+ if (!rw_warn (!traps || floating, 0, lineno,
+ "SIGTRAP not #defined and numeric_limits<%s>::traps == true,
"
+ "cannot test", tname)) {
+ return numT ();
+ }
+#endif // SIGTRAP
+
+ numT result = numT ();
+
+ const int jumped = setjmp (jmp_env);
+
+ volatile numT zero = numT (jumped);
+ volatile numT one = numT (1);
+
+ bool trapped = false;
+
+ if (jumped) {
+ result = zero / one;
+
+ trapped = true;
+ }
+ else {
+ result = one / zero;
+ }
+
+ rw_assert (trapped == traps, 0, lineno,
+ "numeric_limits<%s>::traps == %s, got %s",
+ tname,
+ trapped ? "true" : "false",
+ traps ? "true" : "false");
+
+
+ return result;
+}
+
+/**************************************************************************/
+
+static int
+run_test (int, char*[])
+{
+#define TEST(T, floating) test_traps ((T)0, #T, __LINE__, floating)
+
+#ifndef _RWSTD_NO_NATIVE_BOOL
+ TEST (bool, false);
+#endif // _RWSTD_NO_NATIVE_BOOL
+
+ TEST (char, false);
+ TEST (signed char, false);
+ TEST (unsigned char, false);
+
+ TEST (short, false);
+ TEST (unsigned short, false);
+ TEST (int, false);
+ TEST (unsigned int, false);
+ TEST (long, false);
+ TEST (unsigned long, false);
+
+#ifndef _RWSTD_NO_LONG_LONG
+ TEST (long long, false);
+ TEST (unsigned long long, false);
+#endif // _RWSTD_NO_LONG_LONG
+
+#ifndef _RWSTD_NO_NATIVE_WCHAR_T
+ TEST (wchar_t, false);
+#endif // _RWSTD_NO_NATIVE_WCHAR_T
+
+ TEST (float, true);
+ TEST (double, true);
+
+#ifndef _RWSTD_NO_LONG_DOUBLE
+ TEST (long double, true);
+#endif // _RWSTD_NO_LONG_DOUBLE
+
+ return 0;
+}
+
+/**************************************************************************/
+
+int main (int argc, char *argv[])
+{
+ return rw_test (argc, argv, __FILE__,
+ "lib.numeric.limits.members.traps",
+ 0 /* no comment */, run_test, 0, 0);
+}
Propchange: incubator/stdcxx/trunk/tests/support/18.limits.traps.cpp
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