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openvpn3/openvpn/common/to_string.hpp
David Sommerseth 16b10559f2 [OVPN3-140] Update company names in copyrights
OpenVPN Technologies, Inc. change their name to OpenVPN Inc. during the
autumn of 2017.

Signed-off-by: David Sommerseth <davids@openvpn.net>
2017-12-22 17:59:39 +08:00

64 lines
1.9 KiB
C++

// OpenVPN -- An application to securely tunnel IP networks
// over a single port, with support for SSL/TLS-based
// session authentication and key exchange,
// packet encryption, packet authentication, and
// packet compression.
//
// Copyright (C) 2012-2017 OpenVPN Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License Version 3
// as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program in the COPYING file.
// If not, see <http://www.gnu.org/licenses/>.
// Define openvpn::to_string() to work around the fact that
// std::to_string() is missing on Android.
// http://stackoverflow.com/questions/22774009/android-ndk-stdto-string-support
#ifndef OPENVPN_COMMON_TO_STRING_H
#define OPENVPN_COMMON_TO_STRING_H
#include <string>
#include <sstream>
#include <type_traits>
#include <openvpn/common/platform.hpp>
namespace openvpn {
// Convert an arbitrary argument to a string.
#ifndef OPENVPN_PLATFORM_ANDROID
// numeric types
template <typename T,
typename std::enable_if<std::is_arithmetic<T>::value, int>::type = 0>
inline std::string to_string(T value)
{
return std::to_string(value);
}
#endif
// non-numeric types
template <typename T
#ifndef OPENVPN_PLATFORM_ANDROID
, typename std::enable_if<!std::is_arithmetic<T>::value, int>::type = 0
#endif
>
inline std::string to_string(const T& value)
{
std::ostringstream os;
os << value;
return os.str();
}
}
#endif