| // Copyright (C) 2016 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "common.h" |
| #include <assert.h> |
| |
| std::vector<uint32_t> makeVector(uint32_t word) { |
| std::vector<uint32_t> result = {word}; |
| return result; |
| } |
| |
| std::vector<uint32_t> makeVector(std::initializer_list<uint32_t> list) { |
| std::vector<uint32_t> result(list); |
| return result; |
| } |
| |
| std::vector<uint32_t> makeVector(const char* str) { |
| assert(str != nullptr && "makeVector: making vector from null pointer."); |
| uint32_t word; |
| std::vector<uint32_t> result; |
| char* word_string = (char*)&word; |
| char* word_ptr = word_string; |
| int char_count = 0; |
| char c; |
| |
| if (str != nullptr) { |
| do { |
| c = *(str++); |
| *(word_ptr++) = c; |
| ++char_count; |
| if (char_count == 4) { |
| result.push_back(word); |
| word_ptr = word_string; |
| char_count = 0; |
| } |
| } while (c != 0); |
| |
| // deal with partial last word |
| if (char_count > 0) { |
| // pad with 0s |
| for (; char_count < 4; ++char_count) *(word_ptr++) = 0; |
| result.push_back(word); |
| } |
| } |
| return result; |
| } |
| |
| /** |
| * Return string represented by given binary. |
| **/ |
| std::string extractString(const std::vector<uint32_t>& words) { |
| std::string ret; |
| for (uint32_t i = 0; i < words.size(); i++) { |
| uint32_t w = words[i]; |
| |
| for (uint32_t j = 0; j < 4; j++, w >>= 8) { |
| char c = w & 0xff; |
| if (c == '\0') return ret; |
| ret += c; |
| } |
| } |
| assert(false && "extractString: expected the vector to represent a null-terminated string"); |
| return ret; |
| } |