1 files changed, 23 insertions, 0 deletions
diff --git a/libc/src/string/strcat.cpp b/libc/src/string/strcat.cpp
new file mode 100644
index 00000000000..366b1854e60
--- /dev/null
+++ b/libc/src/string/strcat.cpp
@@ -0,0 +1,23 @@
+//===-------------------- Implementation of strcat -----------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/string/strcat.h"
+
+#include "src/__support/common.h"
+#include "src/string/strcpy.h"
+
+namespace __llvm_libc {
+
+char *LLVM_LIBC_ENTRYPOINT(strcat)(char *dest, const char *src) {
+  // We do not yet have an implementaion of strlen in so we will use strlen
+  // from another libc.
+  __llvm_libc::strcpy(dest + ::strlen(dest), src);
+  return dest;
+}
+
+} // namespace __llvm_libc