111 lines
3.0 KiB
C++
111 lines
3.0 KiB
C++
/***************************************************************************
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*
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* 18.setjmp.cpp - test exercising [support.runtime], header <setjmp.h>
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*
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* $Id: 18.setjmp.cpp 593007 2007-11-08 04:30:45Z sebor $
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*
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***************************************************************************
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*
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* Copyright 2007 Rogue Wave Software, Inc.
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*
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**************************************************************************/
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#include <setjmp.h>
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#include <driver.h>
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/**************************************************************************/
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jmp_buf env;
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void test_longjmp (int arg)
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{
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longjmp (env, arg);
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rw_assert (0, 0, __LINE__,
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"call to longjmp(..., %d) returned", arg);
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}
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/**************************************************************************/
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static int
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run_test (int, char**)
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{
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#ifdef longjmp
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// longjmp must not be #defined as a macro
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rw_assert (0, 0, __LINE__, "longjmp #defined as a macro");
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#endif // longjmp
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#ifdef jmp_buf
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//jmp_buf must not be #defined as a macro
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rw_assert (0, 0, __LINE__, "jmp_buf #defined as a macro");
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#endif // jmp_buf
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#ifndef setjmp
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//setjmp must be #defined as a macro
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rw_assert (0, 0, __LINE__, "macro setjmp not #defined");
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#endif // setjmp
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// verify that setjmp works
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// using volatile to work around a gcc optimizer bug:
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// http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34024
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volatile int arg = 1;
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int result;
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result = setjmp (env);
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if (0 == result) {
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test_longjmp (arg);
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rw_assert (0, 0, __LINE__,
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"call to longjmp(..., %d) returned", arg);
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}
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else {
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rw_assert (arg == result, 0, __LINE__,
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"longjmp(..., %d) returned %d from setjmp()",
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arg, result);
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// repeat a couple more times
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if (arg < 3)
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test_longjmp (++arg);
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}
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return 0;
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}
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/**************************************************************************/
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int main (int argc, char *argv[])
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{
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return rw_test (argc, argv, __FILE__,
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"support.runtime",
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"header <setjmp.h>",
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run_test,
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"",
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(void*)0);
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}
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