mirror of
https://github.com/monero-project/monero.git
synced 2024-12-25 21:19:27 +00:00
82 lines
2.8 KiB
C++
82 lines
2.8 KiB
C++
// Copyright (c) 2017-2018, The Monero Project
|
|
//
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without modification, are
|
|
// permitted provided that the following conditions are met:
|
|
//
|
|
// 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
// conditions and the following disclaimer.
|
|
//
|
|
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
// of conditions and the following disclaimer in the documentation and/or other
|
|
// materials provided with the distribution.
|
|
//
|
|
// 3. Neither the name of the copyright holder nor the names of its contributors may be
|
|
// used to endorse or promote products derived from this software without specific
|
|
// prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
|
|
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
|
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
|
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
#include "hex.h"
|
|
|
|
#include <iterator>
|
|
#include <limits>
|
|
#include <ostream>
|
|
#include <stdexcept>
|
|
|
|
namespace epee
|
|
{
|
|
namespace
|
|
{
|
|
template<typename T>
|
|
void write_hex(T&& out, const span<const std::uint8_t> src)
|
|
{
|
|
static constexpr const char hex[] = u8"0123456789abcdef";
|
|
static_assert(sizeof(hex) == 17, "bad string size");
|
|
for (const std::uint8_t byte : src)
|
|
{
|
|
*out = hex[byte >> 4];
|
|
++out;
|
|
*out = hex[byte & 0x0F];
|
|
++out;
|
|
}
|
|
}
|
|
}
|
|
|
|
std::string to_hex::string(const span<const std::uint8_t> src)
|
|
{
|
|
if (std::numeric_limits<std::size_t>::max() / 2 < src.size())
|
|
throw std::range_error("hex_view::to_string exceeded maximum size");
|
|
|
|
std::string out{};
|
|
out.resize(src.size() * 2);
|
|
buffer_unchecked(std::addressof(out[0]), src);
|
|
return out;
|
|
}
|
|
|
|
void to_hex::buffer(std::ostream& out, const span<const std::uint8_t> src)
|
|
{
|
|
write_hex(std::ostreambuf_iterator<char>{out}, src);
|
|
}
|
|
|
|
void to_hex::formatted(std::ostream& out, const span<const std::uint8_t> src)
|
|
{
|
|
out.put('<');
|
|
buffer(out, src);
|
|
out.put('>');
|
|
}
|
|
|
|
void to_hex::buffer_unchecked(char* out, const span<const std::uint8_t> src) noexcept
|
|
{
|
|
return write_hex(out, src);
|
|
}
|
|
}
|