Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
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/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
21 years ago
#ifndef UINT32_H
#define UINT32_H
#include <inttypes.h> // uint32_t, int32_t
#include <stddef.h> // size_t
#ifdef __cplusplus
extern "C" {
#endif
typedef uint32_t uint32;
typedef int32_t int32;
21 years ago
#if (defined(__i386__) || defined(__x86_64__)) && !defined(NO_UINT32_MACROS)
static inline void uint32_pack(char* out,uint32 in) {
*(uint32*)out=in;
}
static inline void uint32_unpack(const char *in,uint32* out) {
*out=*(const uint32*)in;
}
static inline uint32 uint32_read(const char* in) {
return *(const uint32*)in;
}
#if defined(__x86_64__) && defined(__GNUC__)
static inline void uint32_pack_big(char *out,uint32 in) {
*(uint32*)out=__builtin_bswap32(in);
}
static inline void uint32_unpack_big(const char *in,uint32* out) {
*out=__builtin_bswap32(*(const uint32*)in);
}
static inline uint32 uint32_read_big(const char *in) {
return __builtin_bswap32(*(const uint32*)in);
}
#else
void uint32_pack_big(char *out,uint32 in);
void uint32_unpack_big(const char *in,uint32* out);
uint32 uint32_read_big(const char *in);
#endif
21 years ago
#else
void uint32_pack(char *out,uint32 in);
void uint32_pack_big(char *out,uint32 in);
void uint32_unpack(const char *in,uint32* out);
void uint32_unpack_big(const char *in,uint32* out);
uint32 uint32_read(const char *in);
uint32 uint32_read_big(const char *in);
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#endif
static inline size_t fmt_uint32(char* out, uint32 in) {
if (out) uint32_pack(out,in);
return 4;
}
static inline size_t fmt_uint32_big(char* out, uint32 in) {
if (out) uint32_pack_big(out,in);
return 4;
}
static inline size_t scan_uint32(const char* in, size_t len, uint32_t* b) {
if (len<4) return 0;
*b = uint32_read(in);
return 4;
}
static inline size_t scan_uint32_big(const char* in, size_t len, uint32_t* b) {
if (len<4) return 0;
*b = uint32_read_big(in);
return 4;
}
#ifdef __cplusplus
}
#endif
21 years ago
#endif