97 lines
2.3 KiB
C++
97 lines
2.3 KiB
C++
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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 1999-2007 Rogue Wave Software, Inc.
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*
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**************************************************************************/
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extern "C"
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{
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typedef void (*funptr_t)();
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}
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// take the address of the function in a way
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// that foils even clever optimizers
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union {
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funptr_t pf;
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unsigned long ul;
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} funptri;
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#ifdef CHECK_DECL
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# if defined (__linux__) && defined (__GNUG__) && __GNUG__ < 3
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// prevent empty exception specifications from triggering
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// gcc 2.9x -fhonor-std link errors looking for std::terminate()
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# include <features.h>
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# undef __THROW
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# define __THROW
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# endif // gcc < 3 on Linux
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# include HDRNAME
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# ifndef NONAMESPACE
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namespace std { }
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using namespace std;
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# endif // NONAMESPACE
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int main (int argc, char**)
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{
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// with gcc, prevent intrinsics from causing false positives
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# if TAKE_ADDR
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funptri.pf = (funptr_t)&FUNNAME;
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return (argc < 1 ? !funptri.ul : !!funptri.ul) + 0;
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# else // if !TAKE_ADDR
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// disable warnings about an unused variable
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(void)&argc;
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// call the function using the supplied arguments
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#ifdef FUN_PARAMS
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FUN_PARAMS;
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#endif
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(void)FUN;
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return 0;
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# endif // TAKE_ADDR
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}
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#else // if !defined (CHECK_DECL)
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extern "C" void FUNNAME ();
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int main (int argc, char**)
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{
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funptri.pf = (funptr_t)&FUNNAME;
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return (argc < 1 ? !funptri.ul : !!funptri.ul) + 0;
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}
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#endif // CHECK_DECL
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