chromium/third_party/webrtc/rtc_base/string_to_number.cc

/*
 *  Copyright 2017 The WebRTC Project Authors. All rights reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "rtc_base/string_to_number.h"

#include <ctype.h>

#include <cerrno>
#include <cstdlib>

#include "rtc_base/checks.h"

namespace rtc {
namespace string_to_number_internal {

absl::optional<signed_type> ParseSigned(absl::string_view str, int base) { … }

absl::optional<unsigned_type> ParseUnsigned(absl::string_view str, int base) { … }

template <typename T>
T StrToT(const char* str, char** str_end);

template <>
inline float StrToT(const char* str, char** str_end) { … }

template <>
inline double StrToT(const char* str, char** str_end) { … }

template <>
inline long double StrToT(const char* str, char** str_end) { … }

template <typename T>
absl::optional<T> ParseFloatingPoint(absl::string_view str) { … }

template absl::optional<float> ParseFloatingPoint(absl::string_view str);
template absl::optional<double> ParseFloatingPoint(absl::string_view str);
template absl::optional<long double> ParseFloatingPoint(absl::string_view str);

}  // namespace string_to_number_internal
}  // namespace rtc