-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
+/* $Id$ */
-// ----------------------------------------------------------------------------
-// C++
+/* strrchr( const char *, int c )
-const char * strrchr( const char * s, int c ) { /* TODO */ };
-char * strrchr( char * s, int c ) { /* TODO */ };
+ This file is part of the Public Domain C Library (PDCLib).
+ Permission is granted to use, modify, and / or redistribute at will.
+*/
-// ----------------------------------------------------------------------------
-// Standard C
+#include <string.h>
-char * strrchr( const char * s, int c ) { /* TODO */ };
+#ifndef REGTEST
-/* PDPC code - unreviewed
+char * strrchr( const char * s, int c )
{
- const char *p;
-
- p = s + strlen(s);
- while (p >= s)
+ size_t i = 0;
+ while ( s[i++] );
+ do
{
- if (*p == (char)c) return ((char *)p);
- p--;
- }
- return (NULL);
+ if ( s[--i] == (char) c )
+ {
+ return (char *) s + i;
+ }
+ } while ( i );
+ return NULL;
}
-*/
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+ char abccd[] = "abccd";
+ TESTCASE( strrchr( abcde, '\0' ) == &abcde[5] );
+ TESTCASE( strrchr( abcde, 'e' ) == &abcde[4] );
+ TESTCASE( strrchr( abcde, 'a' ) == &abcde[0] );
+ TESTCASE( strrchr( abccd, 'c' ) == &abccd[3] );
+ return TEST_RESULTS;
+}
+#endif