llvm-project
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1//===-- Implementation of strcat ------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "src/string/strcat.h"
10#include "src/string/strcpy.h"
11#include "src/string/string_utils.h"
12
13#include "src/__support/common.h"
14
15namespace LIBC_NAMESPACE {
16
17LLVM_LIBC_FUNCTION(char *, strcat,
18(char *__restrict dest, const char *__restrict src)) {
19size_t dest_length = internal::string_length(dest);
20size_t src_length = internal::string_length(src);
21LIBC_NAMESPACE::strcpy(dest + dest_length, src);
22dest[dest_length + src_length] = '\0';
23return dest;
24}
25
26} // namespace LIBC_NAMESPACE
27