libvips/libvipsCC/include/vips/VError.h

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2009-08-16 17:00:08 +02:00
// Header for error type
/*
This file is part of VIPS.
VIPS is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2 of the License, 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
2009-08-16 17:00:08 +02:00
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
#ifndef IM_VERROR_H
#define IM_VERROR_H
/* SWIG includes this file directly rather than going through vipscpp.h ... so
* we have to define these macros here as well.
*/
#ifdef SWIG
#define VIPS_NAMESPACE_START namespace vips {
#define VIPS_NAMESPACE_END }
#endif /*SWIG*/
/* Don't include these when parsing for SWIG.
*/
#ifndef SWIG
# include <string>
# include <iosfwd>
# include <exception>
#endif /*!SWIG*/
VIPS_NAMESPACE_START
// Error type
class VError : public std::exception {
std::string _what;
public:
VError( std::string what ) : _what( what ) {}
VError() {}
virtual ~VError() throw() {}
// Print message and exit
void perror( const char * );
void perror();
// Append some more text to the message
VError &app( std::string txt );
VError &app( const int i );
// Extract string
virtual const char *what() const throw() { return _what.c_str(); }
void ostream_print( std::ostream & ) const;
};
inline std::ostream &operator<<( std::ostream &file, const VError &err )
{
err.ostream_print( file );
return( file );
}
void verror( std::string str = "" ) throw( VError );
VIPS_NAMESPACE_END
#endif /*IM_VERROR_H*/