wstrcmp.c Source File (original) (raw)

1/*

2 * src/backend/utils/mb/wstrcmp.c

3 *

4 *-

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 */

40int

42{

44 if (*s1++ == 0)

45 return 0;

46 return *(const unsigned char *) s1 - *(const pg_wchar *) (s2 - 1);

47}

int pg_char_and_wchar_strcmp(const char *s1, const pg_wchar *s2)