1 files changed, 15 insertions, 0 deletions
diff --git a/lib/str_cat.c b/lib/str_cat.c
new file mode 100644
index 0000000..42723cd
--- /dev/null
+++ b/lib/str_cat.c
@@ -0,0 +1,15 @@
+void
+str_cat(dst, s1, s2)
+  char *dst;
+  char *s1;
+  char *s2;
+{
+  while (*dst = *s1)
+  {
+    s1++;
+    dst++;
+  }
+
+  while (*dst++ = *s2++)
+    ;
+}