1 files changed, 21 insertions, 0 deletions
diff --git a/libc/src/strings/index.cpp b/libc/src/strings/index.cpp
new file mode 100644
index 000000000000..33b2be9f33e0
--- /dev/null
+++ b/libc/src/strings/index.cpp
@@ -0,0 +1,21 @@
+//===-- Implementation of index -------------------------------------------===//
+//
+// 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/strings/index.h"
+
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+#include "src/string/string_utils.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+LLVM_LIBC_FUNCTION(char *, index, (const char *src, int c)) {
+  return internal::strchr_implementation(src, c);
+}
+
+} // namespace LIBC_NAMESPACE_DECL