mirror of
https://github.com/xiaoyifang/goldendict-ng.git
synced 2024-11-27 19:24:08 +00:00
38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
/* This file is (c) 2008-2010 Konstantin Isakov <ikm@users.berlios.de>
|
|
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
|
|
|
|
#ifndef __EX_HH_INCLUDED__
|
|
#define __EX_HH_INCLUDED__
|
|
|
|
#include <string>
|
|
|
|
/// A way to declare an exception class fast
|
|
/// Do like this:
|
|
/// DEF_EX( exErrorInFoo, "An error in foo encountered", std::exception )
|
|
/// DEF_EX( exFooNotFound, "Foo was not found", exErrorInFoo )
|
|
|
|
#define DEF_EX( exName, exDescription, exParent ) \
|
|
class exName: public exParent { \
|
|
public: \
|
|
virtual const char * what() const throw() { return (exDescription); } \
|
|
virtual ~exName() throw() {} };
|
|
|
|
/// Same as DEF_EX, but takes a runtime string argument, which gets concatenated
|
|
/// with the description.
|
|
///
|
|
/// DEF_EX_STR( exCantOpen, "can't open file", std::exception )
|
|
/// ...
|
|
/// throw exCantOpen( "example.txt" );
|
|
///
|
|
/// what() would return "can't open file example.txt"
|
|
|
|
#define DEF_EX_STR( exName, exDescription, exParent ) \
|
|
class exName: public exParent { \
|
|
std::string value; \
|
|
public: \
|
|
exName( std::string const & value_ ): value( std::string( exDescription ) + " " + value_ ) {} \
|
|
virtual const char * what() const throw() { return value.c_str(); } \
|
|
virtual ~exName() throw() {} };
|
|
|
|
#endif
|