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/* General purpose definitions for the Collection Library.
Copyright (C) 1993 Free Software Foundation, Inc.
Written by: R. Andrew McCallum <mccallum@cs.rochester.edu>
Dept. of Computer Science, U. of Rochester, Rochester, NY 14627
This file is part of the GNU Objective-C Collection 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, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __collstd_h_INCLUDE_GNU
#define __collstd_h_INCLUDE_GNU
#include <objc/Object.h>
#define LAMBDA(RETTYPE, ARGS, BODY) \
({RETTYPE __lambda_func ARGS BODY __lambda_func;})
#define LAMBDA_VOID_PERFORM(SELECTOR) \
LAMBDA(void, (id _o), {[_o perform: SELECTOR];})
#define LAMBDA_ID_PERFORM(SELECTOR) \
LAMBDA(id, (id _o), {return [_o perform: SELECTOR];})
#define LAMBDA_BOOL_PERFORM(SELECTOR) \
LAMBDA(BOOL, (id _o), {if ([_o perform:SELECTOR]) return YES; else return NO;})
#ifndef MAX
#define MAX(a,b) \
({typedef _ta = (a), _tb = (b); \
_ta _a = (a); _tb _b = (b); \
_a > _b ? _a : _b; })
#endif
/* I'd like this memory allocation stuff to be put somewhere more general. */
/* I do this to make substituting Boehm's GC easy.
Perhaps I should others too, like objc_atomic_malloc(), etc. */
extern void *(*objc_malloc)(size_t);
extern void *(*objc_realloc)(void *, size_t);
extern void *(*objc_calloc)(size_t, size_t);
extern void (*objc_free)(void *);
#define OBJC_MALLOC(VAR, TYPE, NUM) \
((VAR) = (TYPE *) (*objc_malloc)((unsigned)(NUM)*sizeof(TYPE)))
#define OBJC_REALLOC(VAR, TYPE, NUM) \
((VAR) = (TYPE *) (*objc_realloc)((VAR), (unsigned)(NUM)*sizeof(TYPE)))
#define OBJC_CALLOC(VAR, TYPE, NUM) \
((VAR) = (TYPE *) (*objc_calloc)((unsigned)(NUM), sizeof(TYPE)))
#define OBJC_FREE(PTR) (*objc_free)((PTR))
#endif /* __collstd_h_INCLUDE_GNU */
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