X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstring%2Fmemchr.c;h=fac50549cf0d0b9bf7041786737ca355f5cdde6a;hb=2d43dbb1c70aee6c3474c254c0a2302ef39c0c7a;hp=9aef229e69f040f5b74b150c3987f633ba692a13;hpb=2d7dabdc5e2d6cff488f45c7e917abe1f7e1559a;p=pdclib.old

diff --git a/functions/string/memchr.c b/functions/string/memchr.c
index 9aef229..fac5054 100644
--- a/functions/string/memchr.c
+++ b/functions/string/memchr.c
@@ -1,7 +1,5 @@
 /* $Id$ */
 
-/* Release $Name$ */
-
 /* memchr( const void *, int, size_t )
 
    This file is part of the Public Domain C Library (PDCLib).
@@ -10,6 +8,8 @@
 
 #include <string.h>
 
+#ifndef REGTEST
+
 void * memchr( const void * s, int c, size_t n )
 {
     const unsigned char * p = (const unsigned char *) s;
@@ -24,4 +24,19 @@ void * memchr( const void * s, int c, size_t n )
     return NULL;
 }
 
-#warning Test driver missing.
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+    TESTCASE( memchr( abcde, 'c', 5 ) == &abcde[2] );
+    TESTCASE( memchr( abcde, 'a', 1 ) == &abcde[0] );
+    TESTCASE( memchr( abcde, 'a', 0 ) == NULL );
+    TESTCASE( memchr( abcde, '\0', 5 ) == NULL );
+    TESTCASE( memchr( abcde, '\0', 6 ) == &abcde[5] );
+    return TEST_RESULTS;
+}
+
+#endif