FastJet 3.0.2
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00001 //STARTHEADER 00002 // $Id: Error.cc 2687 2011-11-14 11:17:51Z soyez $ 00003 // 00004 // Copyright (c) 2005-2011, Matteo Cacciari, Gavin P. Salam and Gregory Soyez 00005 // 00006 //---------------------------------------------------------------------- 00007 // This file is part of FastJet. 00008 // 00009 // FastJet is free software; you can redistribute it and/or modify 00010 // it under the terms of the GNU General Public License as published by 00011 // the Free Software Foundation; either version 2 of the License, or 00012 // (at your option) any later version. 00013 // 00014 // The algorithms that underlie FastJet have required considerable 00015 // development and are described in hep-ph/0512210. If you use 00016 // FastJet as part of work towards a scientific publication, please 00017 // include a citation to the FastJet paper. 00018 // 00019 // FastJet is distributed in the hope that it will be useful, 00020 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00021 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00022 // GNU General Public License for more details. 00023 // 00024 // You should have received a copy of the GNU General Public License 00025 // along with FastJet. If not, see <http://www.gnu.org/licenses/>. 00026 //---------------------------------------------------------------------- 00027 //ENDHEADER 00028 00029 #include "fastjet/Error.hh" 00030 #include "fastjet/config.h" 00031 #include <sstream> 00032 00033 // printing the stack would need execinfo 00034 #ifdef FASTJET_HAVE_EXECINFO_H 00035 #include <execinfo.h> 00036 #include <cstdlib> 00037 #endif 00038 00039 FASTJET_BEGIN_NAMESPACE // defined in fastjet/internal/base.hh 00040 00041 using namespace std; 00042 00043 bool Error::_print_errors = true; 00044 bool Error::_print_backtrace = false; 00045 ostream * Error::_default_ostr = & cerr; 00046 00047 Error::Error(const std::string & message_in) { 00048 _message = message_in; 00049 if (_print_errors && _default_ostr){ 00050 ostringstream oss; 00051 oss << "fastjet::Error: "<< message_in << endl; 00052 00053 // only print the stack if execinfo is available and stack enabled 00054 #ifdef FASTJET_HAVE_EXECINFO_H 00055 if (_print_backtrace){ 00056 void * array[10]; 00057 char ** messages; 00058 00059 int size = backtrace(array, 10); 00060 messages = backtrace_symbols(array, size); 00061 00062 oss << "stack:" << endl; 00063 for (int i = 1; i < size && messages != NULL; ++i){ 00064 oss << " #" << i << ": " << messages[i] << endl; 00065 } 00066 free(messages); 00067 } 00068 #endif 00069 00070 *_default_ostr << oss.str(); 00071 // get something written to file even 00072 // if the program aborts 00073 _default_ostr->flush(); 00074 00075 // // output error message either to cerr or to the user-set stream 00076 // if (_default_ostr) { *_default_ostr << oss.str(); 00077 // // get something written to file even 00078 // // if the program aborts 00079 // _default_ostr->flush(); } 00080 // else { std::cerr << oss.str(); } 00081 00082 } 00083 } 00084 00085 FASTJET_END_NAMESPACE 00086