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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-11-10 16:19:12 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-11-10 16:19:12 +0000 |
commit | 6d8270ffc52370931aa7a0ac985078ea10718457 (patch) | |
tree | 65e310bdf9dd9db4886938931afdbeaa8d75aaff /nuttx/libc/string/lib_strchr.c | |
parent | a09a1f220c52cde6dd94e8f82457c66f69d46e3d (diff) | |
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Still trying to recover directory contents
git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5330 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/libc/string/lib_strchr.c')
-rw-r--r-- | nuttx/libc/string/lib_strchr.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/nuttx/libc/string/lib_strchr.c b/nuttx/libc/string/lib_strchr.c new file mode 100644 index 000000000..d0bd22a0e --- /dev/null +++ b/nuttx/libc/string/lib_strchr.c @@ -0,0 +1,78 @@ +/**************************************************************************** + * lib/string/lib_strchr.c + * + * Copyright (C) 2007, 2009, 2011-2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <string.h> + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: strchr + * + * Description: + * The strchr() function locates the first occurrence of 'c' (converted to + * a char) in the string pointed to by 's'. The terminating null byte is + * considered to be part of the string. + * + * Returned Value: + * Upon completion, strchr() returns a pointer to the byte, or a null + * pointer if the byte was not found. + * + ****************************************************************************/ + +#ifndef CONFIG_ARCH_STRCHR +FAR char *strchr(FAR const char *s, int c) +{ + if (s) + { + for (; *s; s++) + { + if (*s == c) + { + return (FAR char *)s; + } + } + } + + return NULL; +} +#endif |