113 lines
2.3 KiB
C
113 lines
2.3 KiB
C
/* This is an example of a header file for platforms/compilers that do
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* not come with stdint.h/stddef.h/stdbool.h/string.h. To use it, define
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* PB_SYSTEM_HEADER as "pb_syshdr.h", including the quotes, and add the
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* extra folder to your include path.
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*
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* It is very likely that you will need to customize this file to suit
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* your platform. For any compiler that supports C99, this file should
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* not be necessary.
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*/
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#ifndef _PB_SYSHDR_H_
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#define _PB_SYSHDR_H_
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/* stdint.h subset */
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#ifdef HAVE_STDINT_H
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#include <stdint.h>
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#else
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/* You will need to modify these to match the word size of your platform. */
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typedef signed char int8_t;
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typedef unsigned char uint8_t;
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typedef signed short int16_t;
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typedef unsigned short uint16_t;
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typedef signed int int32_t;
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typedef unsigned int uint32_t;
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typedef signed long long int64_t;
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typedef unsigned long long uint64_t;
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/* These are ok for most platforms, unless uint8_t is actually not available,
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* in which case you should give the smallest available type. */
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typedef int8_t int_least8_t;
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typedef uint8_t uint_least8_t;
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typedef uint8_t uint_fast8_t;
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typedef int16_t int_least16_t;
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typedef uint16_t uint_least16_t;
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#endif
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/* stddef.h subset */
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#ifdef HAVE_STDDEF_H
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#include <stddef.h>
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#else
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typedef uint32_t size_t;
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#define offsetof(st, m) ((size_t)(&((st *)0)->m))
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#ifndef NULL
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#define NULL 0
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#endif
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#endif
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/* stdbool.h subset */
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#ifdef HAVE_STDBOOL_H
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#include <stdbool.h>
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#else
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#ifndef __cplusplus
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typedef int bool;
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#define false 0
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#define true 1
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#endif
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#endif
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/* stdlib.h subset */
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#ifdef PB_ENABLE_MALLOC
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#else
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void *realloc(void *ptr, size_t size);
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void free(void *ptr);
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#endif
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#endif
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/* string.h subset */
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#ifdef HAVE_STRING_H
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#include <string.h>
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#else
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/* Implementations are from the Public Domain C Library (PDCLib). */
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static size_t strlen( const char * s )
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{
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size_t rc = 0;
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while ( s[rc] )
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{
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++rc;
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}
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return rc;
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}
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static void * memcpy( void *s1, const void *s2, size_t n )
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{
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char * dest = (char *) s1;
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const char * src = (const char *) s2;
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while ( n-- )
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{
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*dest++ = *src++;
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}
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return s1;
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}
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static void * memset( void * s, int c, size_t n )
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{
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unsigned char * p = (unsigned char *) s;
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while ( n-- )
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{
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*p++ = (unsigned char) c;
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}
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return s;
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}
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#endif
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#endif
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