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a62088539e
These can be generified together by using a concept type to designate them. This also has the benefit of not making copies of potentially very large arrays.
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/hex_util.h"
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#include "common/logging/log.h"
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namespace Common {
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u8 ToHexNibble(char c1) {
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if (c1 >= 65 && c1 <= 70)
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return c1 - 55;
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if (c1 >= 97 && c1 <= 102)
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return c1 - 87;
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if (c1 >= 48 && c1 <= 57)
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return c1 - 48;
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LOG_ERROR(Common, "Invalid hex digit: 0x{:02X}", c1);
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return 0;
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}
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std::vector<u8> HexStringToVector(std::string_view str, bool little_endian) {
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std::vector<u8> out(str.size() / 2);
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if (little_endian) {
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for (std::size_t i = str.size() - 2; i <= str.size(); i -= 2)
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out[i / 2] = (ToHexNibble(str[i]) << 4) | ToHexNibble(str[i + 1]);
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} else {
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for (std::size_t i = 0; i < str.size(); i += 2)
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out[i / 2] = (ToHexNibble(str[i]) << 4) | ToHexNibble(str[i + 1]);
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}
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return out;
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}
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std::array<u8, 16> operator""_array16(const char* str, std::size_t len) {
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if (len != 32) {
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LOG_ERROR(Common,
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"Attempting to parse string to array that is not of correct size (expected=32, "
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"actual={}).",
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len);
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return {};
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}
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return HexStringToArray<16>(str);
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}
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std::array<u8, 32> operator""_array32(const char* str, std::size_t len) {
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if (len != 64) {
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LOG_ERROR(Common,
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"Attempting to parse string to array that is not of correct size (expected=64, "
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"actual={}).",
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len);
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return {};
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}
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return HexStringToArray<32>(str);
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}
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} // namespace Common
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