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/*C
(c) 2005 bl0rg.net
**/
#ifndef PACK_H__
#define PACK_H__
/*M
\emph{8 bits value packing macro.}
This macro advances the buffer pointer it is given as first
argument, and fills the buffer with the 8 bits value
given as second argument.
**/
#define UINT8_PACK(ptr, i) { *(ptr++) = i; }
/*M
\emph{8 bits value unpacking macro.}
This macro advances the buffer pointer it is given as first
argument, and returns the unpacked 8 bits value in the buffer.
**/
#define UINT8_UNPACK(ptr) (*(ptr++))
/*M
\emph{16 bits value packing macro.}
This macro advances the buffer pointer it is given as first
argument, and fills the buffer with the big endian packed value
given as second argument.
**/
#define UINT16_PACK(ptr, i) \
{ *(ptr++) = (unsigned char)(((i) >> 8) & 0xFF); \
*(ptr++) = (unsigned char)((i) & 0xFF); }
/*M
\emph{32 bits value packing macro.}
This macro advances the buffer pointer it is given as first
argument, and fills the buffer with the big endian packed value
given as second argument.
**/
#define UINT32_PACK(ptr, i) \
{ *(ptr++) = (unsigned char)(((i) >> 24) & 0xFF); \
*(ptr++) = (unsigned char)(((i) >> 16) & 0xFF); \
*(ptr++) = (unsigned char)(((i) >> 8) & 0xFF); \
*(ptr++) = (unsigned char)((i) & 0xFF); }
/*M
\emph{24 bits value packing macro.}
**/
#define UINT24_PACK(ptr, i) \
{ *(ptr++) = (unsigned char)(((i) >> 16) & 0xFF); \
*(ptr++) = (unsigned char)(((i) >> 8) & 0xFF); \
*(ptr++) = (unsigned char)((i) & 0xFF); }
/*M
\emph{16 bits value unpacking macro.}
This macro advances the buffer pointer it is given as first
argument, and returns the unpacked big endian value in the buffer.
**/
#define UINT16_UNPACK(ptr) uint16_unpack__(&ptr)
unsigned int uint16_unpack__(/*@out@*/ unsigned char **ptr);
/*M
\emph{32 bits value unpacking macro.}
This macro advances the buffer pointer it is given as first
argument, and returns the unpacked big endian value in the
buffer.
**/
#define UINT32_UNPACK(ptr) uint32_unpack__(&ptr)
unsigned int uint32_unpack__(/*@out@*/ unsigned char **ptr);
/*M
\emph{16 bits value packing macro.}
This macro advances the buffer pointer it is given as first
argument, and fills the buffer with the little endian packed value
given as second argument.
**/
#define LE_UINT16_PACK(ptr, i) \
{ *(ptr++) = (unsigned char)((i) & 0xFF); \
*(ptr++) = (unsigned char)(((i) >> 8) & 0xFF); }
/*M
\emph{32 bits value packing macro.}
This macro advances the buffer pointer it is given as first
argument, and fills the buffer with the little endian packed value
given as second argument.
**/
#define LE_UINT32_PACK(ptr, i) \
{ *(ptr++) = (unsigned char)((i) & 0xFF); \
*(ptr++) = (unsigned char)(((i) >> 8) & 0xFF); \
*(ptr++) = (unsigned char)(((i) >> 16) & 0xFF); \
*(ptr++) = (unsigned char)(((i) >> 24) & 0xFF); }
/*M
\emph{16 bits value unpacking macro.}
This macro advances the buffer pointer it is given as first
argument, and returns the unpacked little endian value in the buffer.
**/
#define LE_UINT16_UNPACK(ptr) le_uint16_unpack__(&ptr)
unsigned int le_uint16_unpack__(/*@out@*/ unsigned char **ptr);
/*M
\emph{32 bits value unpacking macro.}
This macro advances the buffer pointer it is given as first
argument, and returns the unpacked little endian value in the
buffer.
**/
#define LE_UINT32_UNPACK(ptr) le_uint32_unpack__(&ptr)
unsigned int le_uint32_unpack__(/*@out@*/ unsigned char **ptr);
#endif /* PACK_H__ */
/*C
**/
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