llvm-project

1
//===-- Implementation of strxfrm -----------------------------------------===//
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/strxfrm.h"
10
#include "src/string/memory_utils/inline_memcpy.h"
11
#include "src/string/string_utils.h"
12

13
#include "src/__support/common.h"
14

15
namespace LIBC_NAMESPACE {
16

17
// TODO: Add support for locales.
18
LLVM_LIBC_FUNCTION(size_t, strxfrm,
19
                   (char *__restrict dest, const char *__restrict src,
20
                    size_t n)) {
21
  size_t len = internal::string_length(src);
22
  if (n > len)
23
    inline_memcpy(dest, src, len + 1);
24
  return len;
25
}
26

27
} // namespace LIBC_NAMESPACE
28