| 1 | //===-- Implementation of stpcpy ------------------------------------------===// |
|---|---|
| 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/stpcpy.h" |
| 10 | #include "src/string/mempcpy.h" |
| 11 | #include "src/string/string_utils.h" |
| 12 | |
| 13 | #include "src/__support/common.h" |
| 14 | |
| 15 | namespace LIBC_NAMESPACE { |
| 16 | |
| 17 | LLVM_LIBC_FUNCTION(char *, stpcpy, |
| 18 | (char *__restrict dest, const char *__restrict src)) { |
| 19 | size_t size = internal::string_length(src) + 1; |
| 20 | char *result = |
| 21 | reinterpret_cast<char *>(LIBC_NAMESPACE::mempcpy(dest, src, count: size)); |
| 22 | |
| 23 | if (result != nullptr) |
| 24 | return result - 1; |
| 25 | return nullptr; |
| 26 | } |
| 27 | |
| 28 | } // namespace LIBC_NAMESPACE |
| 29 |