codebridge-ai/testlog/deepseek-coder-6.7b/cpp/memory-safety-1754151367656.json

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{
  "timestamp": "2025-08-02T16:16:07.656Z",
  "model": "deepseek-coder:6.7b",
  "language": "cpp",
  "scenario": "memory-safety",
  "task": "Add destructor, copy constructor, and move semantics",
  "originalCode": "class Buffer {\n    char* data;\n    int size;\npublic:\n    Buffer(int s) {\n        data = new char[s];\n        size = s;\n    }\n};",
  "rawResponse": "Here is your updated class with added destructor, copy constructor, and move constructor:\n\n```cpp\nclass Buffer {\n    char* data;\n    int size;\npublic:\n    // Constructor\n    Buffer(int s) : data(new char[s]), size(s) {}\n    \n    // Copy constructor\n    Buffer(const Buffer& other) : data(new char[other.size]), size(other.size) {\n        std::copy(other.data, other.data + other.size, data);\n    }\n    \n    // Move constructor\n    Buffer(Buffer&& other) noexcept : data(std::exchange(other.data, nullptr)), size(std::exchange(other.size, 0)) {}\n    \n    // Destructor\n    ~Buffer() { delete[] data; }\n};\n```\nIn the copy constructor, we are allocating new memory and copying `other`'s contents into it. In the move constructor, we are transferring ownership of `data` pointer to this object from `other` without any copies (using `std::exchange`). Finally, in destructor, we deallocate the memory that was allocated for `data`.\n",
  "improvedCode": "class Buffer {\n    char* data;\n    int size;\npublic:\n    // Constructor\n    Buffer(int s) : data(new char[s]), size(s) {}\n    \n    // Copy constructor\n    Buffer(const Buffer& other) : data(new char[other.size]), size(other.size) {\n        std::copy(other.data, other.data + other.size, data);\n    }\n    \n    // Move constructor\n    Buffer(Buffer&& other) noexcept : data(std::exchange(other.data, nullptr)), size(std::exchange(other.size, 0)) {}\n    \n    // Destructor\n    ~Buffer() { delete[] data; }\n};",
  "duration": 6895,
  "success": true,
  "qualityMetrics": {
    "hasCode": true,
    "hasDestructor": true,
    "hasStdLibrary": true,
    "score": 0.5384615384615384,
    "rawScore": 0.7,
    "maxScore": 1.3
  },
  "error": null
}