| 1 | // Copyright 2013 The Flutter Authors. All rights reserved. |
|---|---|
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "flutter/fml/base32.h" |
| 6 | |
| 7 | #include <string> |
| 8 | |
| 9 | namespace fml { |
| 10 | |
| 11 | static constexpr char kEncoding[] = "0123456789abcdef"; |
| 12 | |
| 13 | std::string HexEncode(std::string_view input) { |
| 14 | std::string result; |
| 15 | result.reserve(requested_capacity: input.size() * 2); |
| 16 | for (char c : input) { |
| 17 | uint8_t b = static_cast<uint8_t>(c); |
| 18 | result.push_back(c: kEncoding[b >> 4]); |
| 19 | result.push_back(c: kEncoding[b & 0xF]); |
| 20 | } |
| 21 | return result; |
| 22 | } |
| 23 | |
| 24 | } // namespace fml |
| 25 |