X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstring%2Fstrcat.c;h=d9609157ffc77f048a63eb07054630589210c3a0;hb=0e0c0fbd57380a25f109e876516a22d5e19cbc2c;hp=422565d15c388d2583957bfbc4c1ae43d5cc2174;hpb=c2f1367984ba4153d892062759c3813020b65a9a;p=pdclib

diff --git a/functions/string/strcat.c b/functions/string/strcat.c
index 422565d..d960915 100644
--- a/functions/string/strcat.c
+++ b/functions/string/strcat.c
@@ -9,6 +9,9 @@
 */
 
 #include <_PDCLIB_aux.h>
+#include <string.h>
+
+#ifndef REGTEST
 
 char * strcat( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2 )
 {
@@ -20,3 +23,28 @@ char * strcat( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2 )
     while ( (*s1++ = *s2++) );
     return rc;
 }
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main()
+{
+    char s[] = "xx\0xxxxxx";
+    BEGIN_TESTS;
+    TESTCASE( strcat( s, abcde ) == s );
+    TESTCASE( s[2] == 'a' );
+    TESTCASE( s[6] == 'e' );
+    TESTCASE( s[7] == '\0' );
+    TESTCASE( s[8] == 'x' );
+    s[0] = '\0';
+    TESTCASE( strcat( s, abcdx ) == s );
+    TESTCASE( s[4] == 'x' );
+    TESTCASE( s[5] == '\0' );
+    TESTCASE( strcat( s, "\0" ) == s );
+    TESTCASE( s[5] == '\0' );
+    TESTCASE( s[6] == 'e' );
+    return TEST_RESULTS;
+}
+#endif