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Diffstat (limited to 'dvi/mdvi-lib/sysdeps.h')
| -rw-r--r-- | dvi/mdvi-lib/sysdeps.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/dvi/mdvi-lib/sysdeps.h b/dvi/mdvi-lib/sysdeps.h new file mode 100644 index 0000000..8f89178 --- /dev/null +++ b/dvi/mdvi-lib/sysdeps.h @@ -0,0 +1,116 @@ +/* + * Copyright (C) 2000, Matias Atria + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef _SYSDEP_H +#define _SYSDEP_H 1 + +/* + * The purpose of this file is to define symbols that describe the + * system-dependent features we use. Namely, byte order, native integer + * types of various sizes, and safe pointer<->integer conversion. + */ + +#include "config.h" + +#ifdef WORDS_BIGENDIAN +#define WORD_BIG_ENDIAN 1 +#else +#define WORD_LITTLE_ENDIAN 1 +#endif + +typedef unsigned long Ulong; +typedef unsigned int Uint; +typedef unsigned short Ushort; +typedef unsigned char Uchar; + +/* this one's easy */ +typedef unsigned char Uint8; +typedef char Int8; + +/* define a datatype for 32bit integers (either int or long) */ +#if SIZEOF_LONG == 4 +typedef unsigned long Uint32; +typedef long Int32; +#else /* SIZEOF_LONG != 4 */ +#if SIZEOF_INT == 4 +typedef unsigned int Uint32; +typedef int Int32; +#else /* SIZEOF_INT != 4 */ +#ifdef __cplusplus +#include "No.appropriate.32bit.native.type.found.Fix.sysdeps.h" +#else +#error No appropriate 32bit native type found. Fix sysdeps.h +#endif /* ! __cplusplus */ +#endif /* SIZEOF_INT != 4 */ +#endif /* SIZEOF_LONG != 4 */ + +/* now 16bit integers (one of long, int or short) */ +#if SIZEOF_SHORT == 2 +typedef unsigned short Uint16; +typedef short Int16; +#else /* SIZEOF_SHORT != 2 */ +#if SIZEOF_INT == 2 +typedef unsigned int Uint16; +typedef short Int16; +#else /* SIZEOF_INT != 2 */ +#ifdef __cplusplus +#include "No.appropriate.16bit.native.type.found.Fix.sysdeps.h" +#else +#error No appropriate 16bit native type found. Fix sysdeps.h +#endif /* ! __cplusplus */ +#endif /* SIZEOF_INT != 2 */ +#endif /* SIZEOF_SHORT != 2 */ + +/* + * An integer type to convert to and from pointers safely. All we do here is + * look for an integer type with the same size as a pointer. + */ +#if SIZEOF_LONG == SIZEOF_VOID_P +typedef unsigned long UINT; +typedef long INT; +#else +#if SIZEOF_INT == SIZEOF_VOID_P +typedef unsigned int UINT; +typedef int INT; +#else +#if SIZEOF_SHORT == SIZEOF_VOID_P +typedef unsigned short UINT; +typedef short INT; +#else +#ifdef __cplusplus +#include "No.native.pointer-compatible.integer.type.found.Fix.sysdeps.h" +#else +#error No native pointer-compatible integer type found. Fix sysdeps.h +#endif +#endif +#endif +#endif + +/* nice, uh? */ +typedef void *Pointer; + +/* macros to do the safe pointer <-> integer conversions */ +#define Ptr2Int(x) ((INT)((Pointer)(x))) +#define Int2Ptr(x) ((Pointer)((INT)(x))) + +#ifdef _NO_PROTO +#define __PROTO(x) () +#else +#define __PROTO(x) x +#endif + +#endif /* _SYSDEP_H */ |