ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libeio/ecb.h
(Generate patch)

Comparing libeio/ecb.h (file contents):
Revision 1.11 by root, Tue Apr 24 18:47:50 2012 UTC vs.
Revision 1.12 by root, Mon May 28 17:00:19 2012 UTC

… …
28 */ 28 */
29 29
30#ifndef ECB_H 30#ifndef ECB_H
31#define ECB_H 31#define ECB_H
32 32
33/* 16 bits major, 16 bits minor */
34#define ECB_VERSION 0x00010001
35
33#ifdef _WIN32 36#ifdef _WIN32
34 typedef signed char int8_t; 37 typedef signed char int8_t;
35 typedef unsigned char uint8_t; 38 typedef unsigned char uint8_t;
36 typedef signed short int16_t; 39 typedef signed short int16_t;
37 typedef unsigned short uint16_t; 40 typedef unsigned short uint16_t;
… …
42 typedef unsigned long long uint64_t; 45 typedef unsigned long long uint64_t;
43 #else /* _MSC_VER || __BORLANDC__ */ 46 #else /* _MSC_VER || __BORLANDC__ */
44 typedef signed __int64 int64_t; 47 typedef signed __int64 int64_t;
45 typedef unsigned __int64 uint64_t; 48 typedef unsigned __int64 uint64_t;
46 #endif 49 #endif
50 #ifdef _WIN64
51 #define ECB_PTRSIZE 8
52 typedef uint64_t uintptr_t;
53 typedef int64_t intptr_t;
54 #else
55 #define ECB_PTRSIZE 4
56 typedef uint32_t uintptr_t;
57 typedef int32_t intptr_t;
58 #endif
59 typedef intptr_t ptrdiff_t;
47#else 60#else
48 #include <inttypes.h> 61 #include <inttypes.h>
62 #if UINTMAX_MAX > 0xffffffffU
63 #define ECB_PTRSIZE 8
64 #else
65 #define ECB_PTRSIZE 4
66 #endif
49#endif 67#endif
50 68
51/* many compilers define _GNUC_ to some versions but then only implement 69/* many compilers define _GNUC_ to some versions but then only implement
52 * what their idiot authors think are the "more important" extensions, 70 * what their idiot authors think are the "more important" extensions,
53 * causing enormous grief in return for some better fake benchmark numbers. 71 * causing enormous grief in return for some better fake benchmark numbers.
… …
310 328
311 return r + ecb_ld32 (x); 329 return r + ecb_ld32 (x);
312 } 330 }
313#endif 331#endif
314 332
333ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
334ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
335ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
336ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
337
315ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 338ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
316ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 339ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
317{ 340{
318 return ( (x * 0x0802U & 0x22110U) 341 return ( (x * 0x0802U & 0x22110U)
319 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 342 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines