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// 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- OpenVPN Inc.
//
// SPDX-License-Identifier: MPL-2.0 OR AGPL-3.0-only WITH openvpn3-openssl-exception
//
// 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();
}
} // namespace openvpn
#endif
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