llvm-project
29 строк · 953.0 Байт
1//===-- Implementation of strtoul -----------------------------------------===//
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/strtoul.h"
10#include "src/__support/common.h"
11#include "src/__support/str_to_integer.h"
12#include "src/errno/libc_errno.h"
13
14namespace LIBC_NAMESPACE {
15
16LLVM_LIBC_FUNCTION(unsigned long, strtoul,
17(const char *__restrict str, char **__restrict str_end,
18int base)) {
19auto result = internal::strtointeger<unsigned long>(str, base);
20if (result.has_error())
21libc_errno = result.error;
22
23if (str_end != nullptr)
24*str_end = const_cast<char *>(str + result.parsed_len);
25
26return result;
27}
28
29} // namespace LIBC_NAMESPACE
30