| 1 | //===-- Implementation of atoi --------------------------------------------===// |
|---|---|
| 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/stdlib/atoi.h" |
| 10 | #include "src/__support/common.h" |
| 11 | #include "src/__support/str_to_integer.h" |
| 12 | #include "src/errno/libc_errno.h" |
| 13 | |
| 14 | namespace LIBC_NAMESPACE { |
| 15 | |
| 16 | LLVM_LIBC_FUNCTION(int, atoi, (const char *str)) { |
| 17 | // This is done because the standard specifies that atoi is identical to |
| 18 | // (int)(strtol). |
| 19 | auto result = internal::strtointeger<long>(src: str, base: 10); |
| 20 | if (result.has_error()) |
| 21 | libc_errno = result.error; |
| 22 | |
| 23 | return static_cast<int>(result); |
| 24 | } |
| 25 | |
| 26 | } // namespace LIBC_NAMESPACE |
| 27 |