Reviewed.

[pdclib] / functions / string / strncat.c

diff --git a/functions/string/strncat.c b/functions/string/strncat.c
index 624ac0387933ed1210f859e67f78a9519febfdd4..d168e6e8e02ecb2a056cf993bb9b4ca811856c2d 100644 (file)
--- a/functions/string/strncat.c
+++ b/functions/string/strncat.c
@@ -5,4 +5,18 @@
 // This code is Public Domain. Use, modify, and redistribute at will.
 // ----------------------------------------------------------------------------
 
-char * strncat( char * restrict s1, const char * restrict s2, size_t n ) { /* TODO */ };
+#include <__size_t.h>
+
+char * strncat( char * restrict dest, const char * restrict src, size_t n )
+{
+    char * tmp = dest;
+    while ( *dest != '\0' )
+    {
+        ++dest;
+    }
+    while ( ( n-- > 0 ) && ( *src != '\0' ) )
+    {
+        *dest++ = *src++;
+    }
+    return tmp;
+}