yuzu/src/common/hex_util.h
Lioncash 39c8d18feb core/CMakeLists: Make some warnings errors
Makes our error coverage a little more consistent across the board by
applying it to Linux side of things as well. This also makes it more
consistent with the warning settings in other libraries in the project.

This also updates httplib to 0.7.9, as there are several warning
cleanups made that allow us to enable several warnings as errors.
2020-10-13 13:16:49 -04:00

71 lines
2 KiB
C++

// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <cstddef>
#include <string>
#include <type_traits>
#include <vector>
#include <fmt/format.h>
#include "common/common_types.h"
namespace Common {
[[nodiscard]] constexpr u8 ToHexNibble(char c) {
if (c >= 65 && c <= 70) {
return static_cast<u8>(c - 55);
}
if (c >= 97 && c <= 102) {
return static_cast<u8>(c - 87);
}
return static_cast<u8>(c - 48);
}
[[nodiscard]] std::vector<u8> HexStringToVector(std::string_view str, bool little_endian);
template <std::size_t Size, bool le = false>
[[nodiscard]] constexpr std::array<u8, Size> HexStringToArray(std::string_view str) {
std::array<u8, Size> out{};
if constexpr (le) {
for (std::size_t i = 2 * Size - 2; i <= 2 * Size; i -= 2) {
out[i / 2] = static_cast<u8>((ToHexNibble(str[i]) << 4) | ToHexNibble(str[i + 1]));
}
} else {
for (std::size_t i = 0; i < 2 * Size; i += 2) {
out[i / 2] = static_cast<u8>((ToHexNibble(str[i]) << 4) | ToHexNibble(str[i + 1]));
}
}
return out;
}
template <typename ContiguousContainer>
[[nodiscard]] std::string HexToString(const ContiguousContainer& data, bool upper = true) {
static_assert(std::is_same_v<typename ContiguousContainer::value_type, u8>,
"Underlying type within the contiguous container must be u8.");
constexpr std::size_t pad_width = 2;
std::string out;
out.reserve(std::size(data) * pad_width);
for (const u8 c : data) {
out += fmt::format(upper ? "{:02X}" : "{:02x}", c);
}
return out;
}
[[nodiscard]] constexpr std::array<u8, 16> AsArray(const char (&data)[17]) {
return HexStringToArray<16>(data);
}
[[nodiscard]] constexpr std::array<u8, 32> AsArray(const char (&data)[65]) {
return HexStringToArray<32>(data);
}
} // namespace Common