generic.h

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// # generic.h:  some defines, from the GNU C++ Library
// # This may look like C code, but it is really -*- C++ -*-
// #
// # Copyright (C) 1988 Free Software Foundation
// #     written by Doug Lea (dl@rocky.oswego.edu)
// #
// # This file is part of the GNU C++ Library.  This library is free
// # software; you can redistribute it and/or modify it under the terms of
// # the GNU Library General Public License as published by the Free
// # Software Foundation; either version 2 of the License, or (at your
// # option) any later version.  This library 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 Library General Public License for more details.
// # You should have received a copy of the GNU Library General Public
// # License along with this library; if not, write to the Free Software
// # Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 
#ifndef CASA_GENERIC_H
#define CASA_GENERIC_H
 
namespace casacore {  // # NAMESPACE CASACORE - BEGIN
 
/*
 *  See the CPP manual, argument prescan section for explanation
 */
 
// <summary>Generic gnu macros</summary>
// <reviewed reviewer="UNKNOWN" date="before2004/08/25" tests="" demos="">
// </reviewed>
// <group name=def>
 
#define g_name2(a, b) gEnErIc2(a, b)
#define gEnErIc2(a, b) a##b
 
#define g_name3(a, b, c) gEnErIc3(a, b, c)
#define gEnErIc3(a, b, c) a##b##c
 
#define g_name4(a, b, c, d) gEnErIc4(a, b, c, d)
#define gEnErIc4(a, b, c, d) a##b##c##d
 
#define GENERIC_STRING(a) gEnErIcStRiNg(a)
#define gEnErIcStRiNg(a) #a
 
#define g_declare(clas, t) g_name2(clas, declare)(t)
#define g_declare2(clas, t1, t2) g_name2(clas, declare2)(t1, t2)
 
#define g_implement(clas, t) g_name2(clas, implement)(t)
#define g_implement2(clas, t1, t2) g_name2(clas, implement2)(t1, t2)
 
// extern genericerror(int,char*);
typedef int (*GPT)(int, char*);
 
#define g_set_handler(gen, type, x) g_name4(set_, type, gen, _handler)(x)
 
#define g_errorhandler(gen, type) g_name3(type, gen, handler)
 
#define g_callerror(gen, type, a, b) (*g_errorhandler(gen, type))(a, b)
 
// </group>
 
}  // namespace casacore
 
#endif