55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
// This may look like C code, but it is really -*- C++ -*-
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/*
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Copyright (C) 1988 Free Software Foundation
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written by Doug Lea (dl@rocky.oswego.edu)
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This file is part of the GNU C++ Library. This library is free
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software; you can redistribute it and/or modify it under the terms of
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the GNU Library General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at your
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option) any later version. This library is distributed in the hope
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that it will be useful, but WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the GNU Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free Software
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Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef generic_h
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#define generic_h 1
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/*
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* See the CPP manual, argument prescan section for explanation
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*/
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#define name2(a,b) gEnErIc2(a,b)
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#define gEnErIc2(a,b) a ## b
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#define name3(a,b,c) gEnErIc3(a,b,c)
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#define gEnErIc3(a,b,c) a ## b ## c
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#define name4(a,b,c,d) gEnErIc4(a,b,c,d)
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#define gEnErIc4(a,b,c,d) a ## b ## c ## d
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#define GENERIC_STRING(a) gEnErIcStRiNg(a)
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#define gEnErIcStRiNg(a) #a
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#define declare(clas,t) name2(clas,declare)(t)
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#define declare2(clas,t1,t2) name2(clas,declare2)(t1,t2)
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#define implement(clas,t) name2(clas,implement)(t)
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#define implement2(clas,t1,t2) name2(clas,implement2)(t1,t2)
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extern genericerror(int,char*);
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typedef int (*GPT)(int,char*);
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#define set_handler(gen,type,x) name4(set_,type,gen,_handler)(x)
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#define errorhandler(gen,type) name3(type,gen,handler)
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#define callerror(gen,type,a,b) (*errorhandler(gen,type))(a,b)
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#endif generic_h
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