/*************************************************************************** * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you 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. * * Copyright 1999-2007 Rogue Wave Software, Inc. * **************************************************************************/ extern "C" { typedef void (*funptr_t)(); } // take the address of the function in a way // that foils even clever optimizers union { funptr_t pf; unsigned long ul; } funptri; #ifdef CHECK_DECL # if defined (__linux__) && defined (__GNUG__) && __GNUG__ < 3 // prevent empty exception specifications from triggering // gcc 2.9x -fhonor-std link errors looking for std::terminate() # include # undef __THROW # define __THROW # endif // gcc < 3 on Linux # include HDRNAME # ifndef NONAMESPACE namespace std { } using namespace std; # endif // NONAMESPACE int main (int argc, char**) { // with gcc, prevent intrinsics from causing false positives # if TAKE_ADDR funptri.pf = (funptr_t)&FUNNAME; return (argc < 1 ? !funptri.ul : !!funptri.ul) + 0; # else // if !TAKE_ADDR // disable warnings about an unused variable (void)&argc; // call the function using the supplied arguments #ifdef FUN_PARAMS FUN_PARAMS; #endif (void)FUN; return 0; # endif // TAKE_ADDR } #else // if !defined (CHECK_DECL) extern "C" void FUNNAME (); int main (int argc, char**) { funptri.pf = (funptr_t)&FUNNAME; return (argc < 1 ? !funptri.ul : !!funptri.ul) + 0; } #endif // CHECK_DECL