qse/ase/macros.h

92 lines
2.6 KiB
C

/*
* $Id: macros.h,v 1.46 2007-02-07 14:04:34 bacon Exp $
*
* {License}
*/
#ifndef _ASE_MACROS_H_
#define _ASE_MACROS_H_
#include <ase/types.h>
#ifdef __cplusplus
/*#define ASE_NULL ((ase_uint_t)0)*/
#define ASE_NULL (0)
#else
#define ASE_NULL ((void*)0)
#endif
#define ASE_CHAR_EOF ((ase_cint_t)-1)
#define ASE_SIZEOF(n) (sizeof(n))
#define ASE_COUNTOF(n) (sizeof(n)/sizeof(n[0]))
#define ASE_OFFSETOF(type,member) ((ase_size_t)&((type*)0)->member)
#define ASE_TYPE_IS_SIGNED(type) (((type)0) > ((type)-1))
#define ASE_TYPE_IS_UNSIGNED(type) (((type)0) < ((type)-1))
#define ASE_TYPE_SIGNED_MAX(type) \
((type)~((type)1 << (ASE_SIZEOF(type) * 8 - 1)))
#define ASE_TYPE_UNSIGNED_MAX(type) ((type)(~(type)0))
#define ASE_TYPE_SIGNED_MIN(type) \
((type)((type)1 << (ASE_SIZEOF(type) * 8 - 1)))
#define ASE_TYPE_UNSIGNED_MIN(type) ((type)0)
#define ASE_TYPE_MAX(type) \
((ASE_TYPE_IS_SIGNED(type)? ASE_TYPE_SIGNED_MAX(type): ASE_TYPE_UNSIGNED_MAX(type)))
#define ASE_TYPE_MIN(type) \
((ASE_TYPE_IS_SIGNED(type)? ASE_TYPE_SIGNED_MIN(type): ASE_TYPE_UNSIGNED_MIN(type)))
#define ASE_IS_POWOF2(x) (((x) & ((x) - 1)) == 0)
#define ASE_SWAP(x,y,original_type,casting_type) \
do { \
x = (original_type)((casting_type)(x) ^ (casting_type)(y)); \
y = (original_type)((casting_type)(y) ^ (casting_type)(x)); \
x = (original_type)((casting_type)(x) ^ (casting_type)(y)); \
} while (0)
#define ASE_ABS(x) ((x) < 0? -(x): (x))
#define ASE_LOOP_CONTINUE(id) goto __loop_ ## id ## _begin__;
#define ASE_LOOP_BREAK(id) goto __loop_ ## id ## _end__;
#define ASE_LOOP_BEGIN(id) __loop_ ## id ## _begin__: {
#define ASE_LOOP_END(id) ASE_LOOP_CONTINUE(id) } __loop_ ## id ## _end__:;
#define ASE_REPEAT(n,blk) \
do { \
ase_size_t __ase_repeat_x1 = (ase_size_t)(n); \
ase_size_t __ase_repeat_x2 = __ase_repeat_x1 >> 4; \
__ase_repeat_x1 &= 15; \
while (__ase_repeat_x1-- > 0) { blk; } \
while (__ase_repeat_x2-- > 0) { \
blk; blk; blk; blk; blk; blk; blk; blk; \
blk; blk; blk; blk; blk; blk; blk; blk; \
} \
} while (0);
#define ASE_MQ_I(val) #val
#define ASE_MQ(val) ASE_MQ_I(val)
#define ASE_MC(ch) ((ase_mchar_t)ch)
#define ASE_MS(str) ((const ase_mchar_t*)str)
#define ASE_MT(txt) (txt)
#define ASE_WQ_I(val) (L ## #val)
#define ASE_WQ(val) ASE_WQ_I(val)
#define ASE_WC(ch) ((ase_wchar_t)L ## ch)
#define ASE_WS(str) ((const ase_wchar_t*)L ## str)
#define ASE_WT(txt) (L ## txt)
#if defined(ASE_CHAR_IS_MCHAR)
#define ASE_C(ch) ASE_MC(ch)
#define ASE_S(str) ASE_MS(str)
#define ASE_T(txt) ASE_MT(txt)
#else
#define ASE_C(ch) ASE_WC(ch)
#define ASE_S(str) ASE_WS(str)
#define ASE_T(txt) ASE_WT(txt)
#endif
#endif