Assert.hpp

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//  This file is part of ff3d - http://www.freefem.org/ff3d
//  Copyright (C) 2001, 2002, 2003 Stéphane Del Pino

//  This program is free software; you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation; either version 2, or (at your option)
//  any later version.

//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.

//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the Free Software Foundation,
//  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  

//  $Id: Assert.hpp,v 1.6 2008/07/26 08:03:17 delpinux Exp $

#ifndef ASSERT_HPP
#define ASSERT_HPP

#ifndef NDEBUG

#include <config.h>

#include <ErrorHandler.hpp>
#include <Stringify.hpp>

#include <signal.h>

#include <cstdlib>
#include <iostream>

#include <RunningOptions.hpp>

#define ASSERT(expression)                                              \
if (not (expression)) {                                                 \
  std::cerr << "##############################################\n";      \
  std::cerr << __FILE__ << ':' << __LINE__  << ":\n";                   \
  std::cerr << "assertion failed: '"+stringify(#expression)+"'\n";      \
  std::cerr << "in function '" << __PRETTY_FUNCTION__ << "'\n"; \
  if (RunningOptions::instance().pauseOnError()) {                      \
    std::cerr << "----------------------------------------------\n";    \
    std::cerr << "to attach gdb to this process do\n";                  \
    std::cerr << "\tgdb -pid " << getpid() << '\n';                     \
    std::cerr << "else press control-c\n";                              \
    std::cerr << "##############################################\n";    \
    sigset_t s;                                                         \
    sigaddset(&s,SIGSTOP);                                              \
    sigsuspend(&s);                                                     \
  } else {                                                              \
    std::cerr << "##############################################\n";    \
  }                                                                     \
  std::exit(1);                                                         \
 }

#else // NDEBUG

#define ASSERT(expression)

#endif // NDEBUG

#endif // ASSERT_HPP

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