-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
+/* $Id$ */
-// ----------------------------------------------------------------------------
-// C++
+/* strchr( const char *, int )
-const char * strchr( const char * s, int c ) { /* TODO */ };
-char * strchr( 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 * strchr( const char * s, int c ) { /* TODO */ };
+#ifndef REGTEST
+
+char * strchr( const char * s, int c )
+{
+ do
+ {
+ if ( *s == (char) c )
+ {
+ return (char *) s;
+ }
+ } while ( *s++ );
+ return NULL;
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+ char abccd[] = "abccd";
+ TESTCASE( strchr( abccd, 'x' ) == NULL );
+ TESTCASE( strchr( abccd, 'a' ) == &abccd[0] );
+ TESTCASE( strchr( abccd, 'd' ) == &abccd[4] );
+ TESTCASE( strchr( abccd, '\0' ) == &abccd[5] );
+ TESTCASE( strchr( abccd, 'c' ) == &abccd[2] );
+ return TEST_RESULTS;
+}
+#endif