1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/lemon/error.h Mon Nov 15 13:10:35 2004 +0000
1.3 @@ -0,0 +1,81 @@
1.4 +/* -*- C++ -*-
1.5 + * src/lemon/error.h - Part of LEMON, a generic C++ optimization library
1.6 + *
1.7 + * Copyright (C) 2004 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
1.8 + * (Egervary Combinatorial Optimization Research Group, EGRES).
1.9 + *
1.10 + * Permission to use, modify and distribute this software is granted
1.11 + * provided that this copyright notice appears in all copies. For
1.12 + * precise terms see the accompanying LICENSE file.
1.13 + *
1.14 + * This software is provided "AS IS" with no warranty of any kind,
1.15 + * express or implied, and with no claim as to its suitability for any
1.16 + * purpose.
1.17 + *
1.18 + */
1.19 +
1.20 +#ifndef LEMON_ERROR_H
1.21 +#define LEMON_ERROR_H
1.22 +
1.23 +//! \ingroup misc
1.24 +//! \file
1.25 +//! \brief Basic error handling (signaling) routines.
1.26 +
1.27 +#include <exception>
1.28 +#include <string>
1.29 +#include <sstream>
1.30 +
1.31 +
1.32 +namespace lemon {
1.33 +
1.34 + /**
1.35 + * \brief Generic exception class.
1.36 + *
1.37 + * \todo Do we need this?
1.38 + *
1.39 + * \todo Don't we need different kind of exceptions for different kind
1.40 + * of errors?
1.41 + * Shouldn't we use \<stdexcept\> instead?
1.42 + */
1.43 + class Exception : public std::exception {
1.44 + protected:
1.45 + std::ostringstream buf;
1.46 + public:
1.47 + Exception() {}
1.48 + explicit Exception(const std::string &s) { buf << s; }
1.49 + Exception(const Exception &e) : std::exception() {
1.50 + buf << e.buf.str();
1.51 + }
1.52 + virtual ~Exception() throw() {}
1.53 +
1.54 + virtual const char* what() const throw() {
1.55 + return buf.str().c_str();
1.56 + }
1.57 +
1.58 + template <typename T>
1.59 + Exception& operator<<(T const& t) { buf << t; return *this; }
1.60 + };
1.61 +
1.62 + /**
1.63 + * \brief Generic error signaling function.
1.64 + *
1.65 + * \todo Do we really need this? Is it helpful?
1.66 + */
1.67 + inline void fault(const std::string &msg) {
1.68 + throw Exception(msg);
1.69 + }
1.70 +
1.71 + /**
1.72 + * \brief Macro for mark not yet implemented features.
1.73 + *
1.74 + * \todo Is this the right place for this? It should be used only in
1.75 + * modules under development.
1.76 + */
1.77 +
1.78 +# define FIXME(msg) \
1.79 + do { throw ::lemon::Exception() << "FIXME: " msg " (in: " \
1.80 + __FILE__ ", " << __LINE__ << ")"; \
1.81 + } while(false)
1.82 +
1.83 +}
1.84 +#endif // LEMON_ERROR_H