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Teuchos_TypeNameTraits.cpp
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00041 
00042 #include "Teuchos_TypeNameTraits.hpp"
00043 #include "Teuchos_Assert.hpp"
00044 
00045 // Define this if you want to force name demangling if supported
00046 //#define HAVE_TEUCHOS_DEMANGLE
00047 
00048 #if defined(HAVE_GCC_ABI_DEMANGLE) && defined(HAVE_TEUCHOS_DEMANGLE)
00049 #  include <cxxabi.h>
00050 #endif
00051 
00052 
00053 std::string Teuchos::demangleName( const std::string &mangledName )
00054 {
00055 #if defined(HAVE_GCC_ABI_DEMANGLE) && defined(HAVE_TEUCHOS_DEMANGLE)
00056   int status;
00057   char* _demangledName = abi::__cxa_demangle (mangledName.c_str (), 0, 0, &status);
00058   if (status != 0 || 0 == _demangledName) {
00059 #ifdef TEUCHOS_DEBUG
00060     // In a debug build, we check if demangling succeeded.
00061     std::string nullstr ("NULL");
00062     const char* demangle_output = _demangledName ? _demangledName : nullstr.c_str ();
00063     using std::endl;
00064     TEUCHOS_TEST_FOR_EXCEPTION(
00065       true, std::logic_error,
00066       "Error, name demangling with g++ has been enabled but the function "
00067       "abi::__cxa_demangle(" << mangledName << ") returned returnVal = " <<
00068       demangle_output <<" and status = " << status << "." << endl << "This "
00069       "suggests that name demangling may be broken on this platform." << endl
00070       << "You may prevent this exception from being thrown in the future by "
00071       "turning off name demangling for this build at configure time." << endl
00072       << "Do this by setting the CMake configuration option "
00073       "Teuchos_ENABLE_GCC_DEMANGLE to OFF." << endl << "Add the following to "
00074       "your list of CMake options:" << endl << endl <<
00075       "  -D Teuchos_ENABLE_GCC_DEMANGLE:BOOL=OFF" << endl);
00076 #endif
00077     if (_demangledName != NULL) {
00078       // The C library standard requires that free() do the right
00079       // thing with NULL input, but it doesn't hurt to check.
00080       free (_demangledName);
00081     }
00082     return (mangledName + "<demangle-failed>");
00083   }
00084   const std::string demangledName (_demangledName);
00085   free (_demangledName); // We have to free this before we return!
00086   return demangledName;
00087 #else
00088   return mangledName;
00089 #endif
00090 }
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