Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 26 | pmbaty | 1 | /* ACC -- Automatic Compiler Configuration |
| 2 | |||
| 3 | Copyright (C) 1996-2004 Markus Franz Xaver Johannes Oberhumer |
||
| 4 | All Rights Reserved. |
||
| 5 | |||
| 6 | This software is a copyrighted work licensed under the terms of |
||
| 7 | the GNU General Public License. Please consult the file "ACC_LICENSE" |
||
| 8 | for details. |
||
| 9 | |||
| 10 | Markus F.X.J. Oberhumer |
||
| 11 | <markus@oberhumer.com> |
||
| 12 | http://www.oberhumer.com/ |
||
| 13 | */ |
||
| 14 | |||
| 15 | |||
| 16 | #define __ACCLIB_HMEMCPY_CH_INCLUDED 1 |
||
| 17 | #if !defined(ACCLIB_PUBLIC) |
||
| 18 | # define ACCLIB_PUBLIC(r,f) r __ACCLIB_FUNCNAME(f) |
||
| 19 | #endif |
||
| 20 | |||
| 21 | |||
| 22 | /*********************************************************************** |
||
| 23 | // memcmp, memcpy, memmove, memset |
||
| 24 | ************************************************************************/ |
||
| 25 | |||
| 26 | ACCLIB_PUBLIC(int, acc_hmemcmp) (const acc_hvoid_p s1, const acc_hvoid_p s2, acc_hsize_t len) |
||
| 27 | { |
||
| 28 | #if (ACC_HAVE_MM_HUGE_PTR) || !defined(HAVE_MEMCMP) |
||
| 29 | const acc_hbyte_p p1 = (const acc_hbyte_p) s1; |
||
| 30 | const acc_hbyte_p p2 = (const acc_hbyte_p) s2; |
||
| 31 | |||
| 32 | if (len > 0) do |
||
| 33 | { |
||
| 34 | int d = *p1 - *p2; |
||
| 35 | if (d != 0) |
||
| 36 | return d; |
||
| 37 | p1++; p2++; |
||
| 38 | } while (--len > 0); |
||
| 39 | return 0; |
||
| 40 | #else |
||
| 41 | return memcmp(s1, s2, len); |
||
| 42 | #endif |
||
| 43 | } |
||
| 44 | |||
| 45 | |||
| 46 | ACCLIB_PUBLIC(acc_hvoid_p, acc_hmemcpy) (acc_hvoid_p dest, const acc_hvoid_p src, acc_hsize_t len) |
||
| 47 | { |
||
| 48 | #if (ACC_HAVE_MM_HUGE_PTR) || !defined(HAVE_MEMCPY) |
||
| 49 | acc_hbyte_p p1 = (acc_hbyte_p) dest; |
||
| 50 | const acc_hbyte_p p2 = (const acc_hbyte_p) src; |
||
| 51 | |||
| 52 | if (len <= 0 || p1 == p2) |
||
| 53 | return dest; |
||
| 54 | do |
||
| 55 | *p1++ = *p2++; |
||
| 56 | while (--len > 0); |
||
| 57 | return dest; |
||
| 58 | #else |
||
| 59 | return memcpy(dest, src, len); |
||
| 60 | #endif |
||
| 61 | } |
||
| 62 | |||
| 63 | |||
| 64 | ACCLIB_PUBLIC(acc_hvoid_p, acc_hmemmove) (acc_hvoid_p dest, const acc_hvoid_p src, acc_hsize_t len) |
||
| 65 | { |
||
| 66 | #if (ACC_HAVE_MM_HUGE_PTR) || !defined(HAVE_MEMMOVE) |
||
| 67 | acc_hbyte_p p1 = (acc_hbyte_p) dest; |
||
| 68 | const acc_hbyte_p p2 = (const acc_hbyte_p) src; |
||
| 69 | |||
| 70 | if (len <= 0 || p1 == p2) |
||
| 71 | return dest; |
||
| 72 | |||
| 73 | if (p1 < p2) |
||
| 74 | { |
||
| 75 | do |
||
| 76 | *p1++ = *p2++; |
||
| 77 | while (--len > 0); |
||
| 78 | } |
||
| 79 | else |
||
| 80 | { |
||
| 81 | p1 += len; |
||
| 82 | p2 += len; |
||
| 83 | do |
||
| 84 | *--p1 = *--p2; |
||
| 85 | while (--len > 0); |
||
| 86 | } |
||
| 87 | return dest; |
||
| 88 | #else |
||
| 89 | return memmove(dest, src, len); |
||
| 90 | #endif |
||
| 91 | } |
||
| 92 | |||
| 93 | |||
| 94 | ACCLIB_PUBLIC(acc_hvoid_p, acc_hmemset) (acc_hvoid_p s, int c, acc_hsize_t len) |
||
| 95 | { |
||
| 96 | #if (ACC_HAVE_MM_HUGE_PTR) || !defined(HAVE_MEMSET) |
||
| 97 | acc_hbyte_p p = (acc_hbyte_p) s; |
||
| 98 | |||
| 99 | if (len > 0) do |
||
| 100 | *p++ = (unsigned char) c; |
||
| 101 | while (--len > 0); |
||
| 102 | return s; |
||
| 103 | #else |
||
| 104 | return memset(s, c, len); |
||
| 105 | #endif |
||
| 106 | } |
||
| 107 | |||
| 108 | |||
| 109 | /* |
||
| 110 | vi:ts=4:et |
||
| 111 | */ |