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c31dd73a90
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@29647 72102866-910b-0410-8b05-ffd578937521
128 lines
3.2 KiB
Objective-C
128 lines
3.2 KiB
Objective-C
/*
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* GSUnion.h
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* File to set up a typedef for a union capable of containing various types.
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* Copyright (C) 1999 Free Software Foundation, Inc.
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*
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* Author: Richard Frith-Macdonald <richard@brainstorm.co.uk>
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* Created: Apr 1999
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*
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* This file is part of the GNUstep Base Library.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02111 USA. */
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/* Need Foundation/NSObjCRuntime.h for type declarations.
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*/
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#import <Foundation/NSObjCRuntime.h>
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/* These are not defined in older Mac OS X systems */
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#ifndef NSINTEGER_DEFINED
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typedef int NSInteger;
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typedef unsigned int NSUInteger;
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#define NSINTEGER_DEFINED 1
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#endif
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/*
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* Definitions for bitmap mask of types of element in union.
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*/
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#ifndef GSUNION_OBJ
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#define GSUNION_OBJ 0x0001
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#define GSUNION_CLS 0x0002
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#define GSUNION_SEL 0x0004
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#define GSUNION_CHAR 0x0008
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#define GSUNION_SHORT 0x0010
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#define GSUNION_INT 0x0020
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#define GSUNION_LONG 0x0040
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#define GSUNION_PTR 0x0080
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#define GSUNION_8B 0x0100
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#define GSUNION_16B 0x0200
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#define GSUNION_32B 0x0400
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#define GSUNION_64B 0x0800
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#define GSUNION_ALL 0x0fff
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#endif /* GSUNION_OBJ */
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/*
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* Produce a typedef for a union with name 'GSUNION' containing elements
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* specified in the GSUNION_TYPES mask, and optionally with an extra
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* element 'ext' of the type specified in GSUNION_EXTRA
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*
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* You can include this file more than once in order to produce different
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* typedefs as long as you redefine 'GSUNION' before each inclusion.
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*/
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#if defined(GSUNION) && defined(GSUNION_TYPES)
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typedef union {
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NSUInteger addr;
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#if ((GSUNION_TYPES) & GSUNION_OBJ)
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id obj;
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NSObject *nso;
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#endif
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#if ((GSUNION_TYPES) & GSUNION_CLS)
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Class cls;
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#endif
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#if ((GSUNION_TYPES) & GSUNION_SEL)
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SEL sel;
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#endif
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#if ((GSUNION_TYPES) & GSUNION_CHAR)
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char schr;
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unsigned char uchr;
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#endif
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#if ((GSUNION_TYPES) & GSUNION_SHORT)
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short ssht;
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unsigned short usht;
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#endif
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#if ((GSUNION_TYPES) & GSUNION_INT)
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int sint;
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unsigned uint;
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#endif
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#if ((GSUNION_TYPES) & GSUNION_LONG)
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long slng;
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unsigned long ulng;
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#endif
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#if ((GSUNION_TYPES) & GSUNION_PTR)
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void *ptr;
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const void *cptr;
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char *str;
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const char *cstr;
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#endif
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#if ((GSUNION_TYPES) & GSUNION_8B)
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int8_t s8;
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uint8_t u8;
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#endif
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#if ((GSUNION_TYPES) & GSUNION_16B)
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int16_t s16;
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uint16_t u16;
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#endif
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#if ((GSUNION_TYPES) & GSUNION_32B)
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int32_t s32;
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uint32_t u32;
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#endif
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#if ((GSUNION_TYPES) & GSUNION_64B)
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int64_t s64;
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uint64_t u64;
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#endif
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#if defined(GSUNION_EXTRA)
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GSUNION_EXTRA ext;
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#endif
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BOOL bool; /* Guaranteed present */
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} GSUNION;
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#endif
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