| // Copyright 2013 The Flutter Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style license that can be | |
| // found in the LICENSE file. | |
| #include "flutter/fml/base32.h" | |
| #include <cstdint> // uint8_t | |
| #include <string> | |
| namespace fml { | |
| static constexpr char kEncoding[] = "0123456789abcdef"; | |
| std::string HexEncode(std::string_view input) { | |
| std::string result; | |
| result.reserve(input.size() * 2); | |
| for (char c : input) { | |
| uint8_t b = static_cast<uint8_t>(c); | |
| result.push_back(kEncoding[b >> 4]); | |
| result.push_back(kEncoding[b & 0xF]); | |
| } | |
| return result; | |
| } | |
| } // namespace fml |