/src/postgres/src/backend/utils/mb/wstrcmp.c
Line | Count | Source |
1 | | /* |
2 | | * src/backend/utils/mb/wstrcmp.c |
3 | | * |
4 | | *- |
5 | | * Copyright (c) 1990, 1993 |
6 | | * The Regents of the University of California. All rights reserved. |
7 | | * |
8 | | * This code is derived from software contributed to Berkeley by |
9 | | * Chris Torek. |
10 | | * |
11 | | * Redistribution and use in source and binary forms, with or without |
12 | | * modification, are permitted provided that the following conditions |
13 | | * are met: |
14 | | * 1. Redistributions of source code must retain the above copyright |
15 | | * notice, this list of conditions and the following disclaimer. |
16 | | * 2. Redistributions in binary form must reproduce the above copyright |
17 | | * notice, this list of conditions and the following disclaimer in the |
18 | | * documentation and/or other materials provided with the distribution. |
19 | | * 3. Neither the name of the University nor the names of its contributors |
20 | | * may be used to endorse or promote products derived from this software |
21 | | * without specific prior written permission. |
22 | | * |
23 | | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
24 | | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
25 | | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
26 | | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
27 | | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
28 | | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
29 | | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
30 | | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
31 | | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
32 | | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
33 | | * SUCH DAMAGE. |
34 | | */ |
35 | | /* can be used in either frontend or backend */ |
36 | | #include "postgres_fe.h" |
37 | | |
38 | | #include "mb/pg_wchar.h" |
39 | | |
40 | | int |
41 | | pg_char_and_wchar_strcmp(const char *s1, const pg_wchar *s2) |
42 | 0 | { |
43 | 0 | while ((pg_wchar) *s1 == *s2++) |
44 | 0 | if (*s1++ == 0) |
45 | 0 | return 0; |
46 | 0 | return *(const unsigned char *) s1 - *(const pg_wchar *) (s2 - 1); |
47 | 0 | } |