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Comparing libecb/ecb.h (file contents):
Revision 1.18 by root, Thu May 26 18:36:43 2011 UTC vs.
Revision 1.22 by root, Thu May 26 19:39:40 2011 UTC

… …
64 64
65#define ECB_HEADER_INLINE static ECB_INLINE 65#define ECB_HEADER_INLINE static ECB_INLINE
66 66
67#if ECB_GCC_VERSION(3,1) 67#if ECB_GCC_VERSION(3,1)
68# define ecb_attribute(attrlist) __attribute__(attrlist) 68# define ecb_attribute(attrlist) __attribute__(attrlist)
69# define ecb_is_constant(c) __builtin_constant_p (c) 69# define ecb_is_constant(expr) __builtin_constant_p (expr)
70# define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 70# define ecb_expect(expr,value) __builtin_expect ((expr),(value))
71# define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 71# define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
72#else 72#else
73# define ecb_attribute(attrlist) 73# define ecb_attribute(attrlist)
74# define ecb_is_constant(c) 0 74# define ecb_is_constant(expr) 0
75# define ecb_expect(expr,value) (expr) 75# define ecb_expect(expr,value) (expr)
76# define ecb_prefetch(addr,rw,locality) 76# define ecb_prefetch(addr,rw,locality)
77#endif 77#endif
78 78
79/* no emulation for ecb_decltype */ 79/* no emulation for ecb_decltype */
… …
89#define ecb_const ecb_attribute ((const)) 89#define ecb_const ecb_attribute ((const))
90#define ecb_pure ecb_attribute ((pure)) 90#define ecb_pure ecb_attribute ((pure))
91#define ecb_hot ecb_attribute ((hot)) /* 4.3 */ 91#define ecb_hot ecb_attribute ((hot)) /* 4.3 */
92#define ecb_cold ecb_attribute ((cold)) /* 4.3 */ 92#define ecb_cold ecb_attribute ((cold)) /* 4.3 */
93 93
94/* put into ifs if you are very sure that the expression */ 94/* put into if's if you are very sure that the expression */
95/* is mostly true or mosty false. note that these return */ 95/* is mostly true or mosty false. note that these return */
96/* booleans, not the expression. */ 96/* booleans, not the expression. */
97#define ecb_unlikely(expr) ecb_expect (!!(expr), 0) 97#define ecb_unlikely(expr) ecb_expect (!!(expr), 0)
98#define ecb_likely(expr) ecb_expect (!!(expr), 1) 98#define ecb_likely(expr) ecb_expect (!!(expr), 1)
99 99
100/* try to tell the compiler that some condition is definitely true */ 100/* try to tell the compiler that some condition is definitely true */
101#define ecb_assume(cond) do { if (!(cond)) unreachable (); } while (0) 101#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
102 102
103/* count trailing zero bits and count # of one bits */ 103/* count trailing zero bits and count # of one bits */
104#if ECB_GCC_VERSION(3,4) 104#if ECB_GCC_VERSION(3,4)
105#define ecb_ctz32 (x) __builtin_ctz (x) 105#define ecb_ctz32 (x) __builtin_ctz (x)
106#define ecb_popcount32 (x) __builtin_popcount (x) 106#define ecb_popcount32 (x) __builtin_popcount (x)
107#else 107#else
108ECB_HEADER_INLINE int ecb_ctz32 (uint32_t x) ecb_const; 108ECB_HEADER_INLINE int ecb_ctz32 (uint32_t x) ecb_const;
109ECB_HEADER_INLINE 109ECB_HEADER_INLINE
110ecb_ctz32 (uint32_t x) 110ecb_ctz32 (uint32_t x)
111{ 111{
112 int r = 0; 112 int r = 0;
113 113
… …
135} 135}
136#endif 136#endif
137 137
138#if ECB_GCC_VERSION(4,3) 138#if ECB_GCC_VERSION(4,3)
139# define ecb_bswap32(x) __builtin_bswap32 (x) 139# define ecb_bswap32(x) __builtin_bswap32 (x)
140# define ecb_bswap16(x) (__builtin_bswap32(x) >> 16)
140#else 141#else
141ECB_HEADER_INLINE uint32_t ecb_bswap32 (uint32_t x) ecb_const; 142ECB_HEADER_INLINE uint32_t ecb_bswap32 (uint32_t x) ecb_const;
142ECB_HEADER_INLINE uint32_t 143ECB_HEADER_INLINE uint32_t
143ecb_bswap32 (uint32_t x) 144ecb_bswap32 (uint32_t x)
144{ 145{
145 return (x >> 24) 146 return (x >> 24)
146 | ((x >> 8) & 0x0000ff00) 147 | ((x >> 8) & 0x0000ff00)
147 | ((x << 8) & 0x00ff0000) 148 | ((x << 8) & 0x00ff0000)
148 | (x << 24); 149 | (x << 24);
149} 150}
151
152ECB_HEADER_INLINE uint32_t ecb_bswap16 (uint32_t x) ecb_const;
153ECB_HEADER_INLINE uint32_t
154ecb_bswap16 (uint32_t x)
155{
156 return ((x >> 8) & 0xff)
157 | ((x << 8) & 0x00ff0000)
158 | (x << 24);
159}
150#endif 160#endif
151 161
152#if ECB_GCC_VERSION(4,5) 162#if ECB_GCC_VERSION(4,5)
153# define ecb_unreachable() __builtin_unreachable () 163# define ecb_unreachable() __builtin_unreachable ()
154#else 164#else
… …
168ECB_HEADER_INLINE ecb_bool ecb_big_endian () ecb_const; 178ECB_HEADER_INLINE ecb_bool ecb_big_endian () ecb_const;
169ECB_HEADER_INLINE ecb_bool ecb_big_endian () { return ecb_byteorder_helper () == 0x11; }; 179ECB_HEADER_INLINE ecb_bool ecb_big_endian () { return ecb_byteorder_helper () == 0x11; };
170ECB_HEADER_INLINE ecb_bool ecb_little_endian () ecb_const; 180ECB_HEADER_INLINE ecb_bool ecb_little_endian () ecb_const;
171ECB_HEADER_INLINE ecb_bool ecb_little_endian () { return ecb_byteorder_helper () == 0x44; }; 181ECB_HEADER_INLINE ecb_bool ecb_little_endian () { return ecb_byteorder_helper () == 0x44; };
172 182
183#define ecb_mod(m, n) ((m) < 0 ? ((n) - (-(m) % (n))) : ((m) % (n)))
184
173#if ecb_cplusplus_does_not_suck 185#if ecb_cplusplus_does_not_suck
174// does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) 186// does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm)
175template<typename T, int N> 187template<typename T, int N>
176static inline int ecb_array_length (const T (&arr)[N]) 188static inline int ecb_array_length (const T (&arr)[N])
177{ 189{

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