X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstring%2Fstrcpy.c;h=68722feaf4e8b18eda8b84a5e88051ef777dd775;hb=b1fc26afebd4d557ff89a44bc21767a8704c3809;hp=1cc1c8e9eedfbec677d2008949211770da261d71;hpb=34893ecc2200dc7017c36a54cb6c5f4c2378b5ec;p=pdclib

diff --git a/functions/string/strcpy.c b/functions/string/strcpy.c
index 1cc1c8e..68722fe 100644
--- a/functions/string/strcpy.c
+++ b/functions/string/strcpy.c
@@ -1,8 +1,35 @@
-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
-
-char * strcpy( char * restrict s1, const char * restrict s2 ) { /* TODO */ };
+/* strcpy( char *, const char * )
+
+   This file is part of the Public Domain C Library (PDCLib).
+   Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <string.h>
+
+#ifndef REGTEST
+
+char * strcpy( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2 )
+{
+    char * rc = s1;
+    while ( ( *s1++ = *s2++ ) );
+    return rc;
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+    char s[] = "xxxxx";
+    TESTCASE( strcpy( s, "" ) == s );
+    TESTCASE( s[0] == '\0' );
+    TESTCASE( s[1] == 'x' );
+    TESTCASE( strcpy( s, abcde ) == s );
+    TESTCASE( s[0] == 'a' );
+    TESTCASE( s[4] == 'e' );
+    TESTCASE( s[5] == '\0' );
+    return TEST_RESULTS;
+}
+#endif