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53 lines
2.1 KiB
C
53 lines
2.1 KiB
C
/* Copyright Richard A. O'Keefe.
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Copyright (c) 2000 TXT DataKonsult Ab & Monty Program Ab
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Copyright (c) 2009-2011, Monty Program Ab
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ``AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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*/
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/* File : strrchr.c
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Author : Richard A. O'Keefe.
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Updated: 10 April 1984
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Defines: strrchr(), rindex()
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strrchr(s, c) returns a pointer to the last place in s where c
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occurs, or NullS if c does not occur in s. This function is called
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rindex in V7 and 4.?bsd systems; while not ideal the name is clearer
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than strrchr, so rindex remains in strings.h as a macro. NB:
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strrchr looks for single characters, not for sets or strings. The
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parameter 'c' is declared 'int' so it will go in a register; if your
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C compiler is happy with register char change it to that.
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*/
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#include "strings.h"
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char *strrchr(register const char *s, register pchar c)
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{
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reg3 char *t;
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t = NullS;
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do if (*s == (char) c) t = (char*) s; while (*s++);
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return (char*) t;
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}
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