28 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/stdlib/atoi.h"10#include "src/__support/common.h"11#include "src/__support/libc_errno.h"12#include "src/__support/macros/config.h"13#include "src/__support/str_to_integer.h"14 15namespace LIBC_NAMESPACE_DECL {16 17LLVM_LIBC_FUNCTION(int, atoi, (const char *str)) {18 // This is done because the standard specifies that atoi is identical to19 // (int)(strtol).20 auto result = internal::strtointeger<long>(str, 10);21 if (result.has_error())22 libc_errno = result.error;23 24 return static_cast<int>(result);25}26 27} // namespace LIBC_NAMESPACE_DECL28