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annotate lib/mbschr.c @ 14379:2330aac2ae54

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maint: adjust cpp indentation to reflect nesting depth I.e., in a block of code that begins with an unnested "#if", put one space between the "#" in column 1 and following token. For example, -#include <sys/vfs.h> +# include <sys/vfs.h> Do this only in .c files that are part of a module I maintain. * lib/linkat.c: Filter through cppi. * lib/nanosleep.c: Likewise. * lib/openat.c: Likewise. * lib/openat-die.c: Likewise. * lib/dup3.c: Likewise. * lib/fchownat.c: Likewise. * lib/flock.c: Likewise. * lib/fsync.c: Likewise. * lib/fts.c: Likewise. * lib/getpass.c: Likewise. * lib/gettimeofday.c: Likewise. * lib/userspec.c: Likewise. * Makefile (sc_cpp_indent_check): New rule, to check this.
author Jim Meyering <meyering@redhat.com>
date Sun, 20 Feb 2011 23:02:43 +0100
parents 97fc9a21a8fb
children 8250f2777afc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* Searching a string for a character.
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2 Copyright (C) 2007-2011 Free Software Foundation, Inc.
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3 Written by Bruno Haible <bruno@clisp.org>, 2007.
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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17
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18 #include <config.h>
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19
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20 /* Specification. */
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21 #include <string.h>
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22
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23 #include "mbuiter.h"
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24
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25 /* Locate the first single-byte character C in the character string STRING,
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26 and return a pointer to it. Return NULL if C is not found in STRING. */
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27 char *
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28 mbschr (const char *string, int c)
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29 {
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30 if (MB_CUR_MAX > 1
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31 /* Optimization: We know that ASCII characters < 0x30 don't occur as
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32 part of multibyte characters longer than 1 byte. Hence, if c < 0x30,
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33 the faster unibyte loop can be used. */
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34 && (unsigned char) c >= 0x30)
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35 {
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36 mbui_iterator_t iter;
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37
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38 for (mbui_init (iter, string);; mbui_advance (iter))
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39 {
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40 if (!mbui_avail (iter))
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41 goto notfound;
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42 if (mb_len (mbui_cur (iter)) == 1
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43 && (unsigned char) * mbui_cur_ptr (iter) == (unsigned char) c)
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44 break;
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45 }
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46 return (char *) mbui_cur_ptr (iter);
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47 notfound:
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48 return NULL;
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49 }
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50 else
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51 return strchr (string, c);
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52 }