Function load_baseline

benchmark/ctrack_benchmark.cpp:552–627

Load baseline from file

// Load baseline from file
bool load_baseline(BaselineData &data)
{
    std::ifstream file(g_config.baseline_file);
    if (!file)
    {
        return false;
    }

    // Simple JSON parsing (production code would use a proper JSON library)
    std::string line;
    while (std::getline(file, line))
    {
        if (line.find("\"accuracy_error_percent\":") != std::string::npos)
        {
            size_t pos = line.find(": ") + 2;
            size_t end = line.find(",", pos);
            data.accuracy_error_percent = std::stod(line.substr(pos, end - pos));
        }
        else if (line.find("\"accuracy_error_ms_per_event\":") != std::string::npos)
        {
            size_t pos = line.find(": ") + 2;
            size_t end = line.find(",", pos);
            data.accuracy_error_ms_per_event = std::stod(line.substr(pos, end - pos));
        }
        else if (line.find("\"overhead_percent\":") != std::string::npos)
        {
            size_t pos = line.find(": ") + 2;
            size_t end = line.find(",", pos);
            data.overhead_percent = std::stod(line.substr(pos, end - pos));
        }
        else if (line.find("\"overhead_ms\":") != std::string::npos)
        {
            size_t pos = line.find(": ") + 2;
            size_t end = line.find(",", pos);
            data.overhead_ms = std::stod(line.substr(pos, end - pos));
        }
        else if (line.find("\"overhead_ns_per_event\":") != std::string::npos)
        {
            size_t pos = line.find(": ") + 2;
            size_t end = line.find(",", pos);
            data.overhead_ns_per_event = std::stod(line.substr(pos, end - pos));
        }
        else if (line.find("\"memory_bytes_per_event\":") != std::string::npos)
        {
            size_t pos = line.find(": ") + 2;
            size_t end = line.find(",", pos);
            data.memory_bytes_per_event = std::stod(line.substr(pos, end - pos));
        }
        else if (line.find("\"calculation_time_ms\":") != std::string::npos)
        {
            size_t pos = line.find(": ") + 2;
            size_t end = line.find(",", pos);
            data.calculation_time_ms = std::stod(line.substr(pos, end - pos));
        }
        else if (line.find("\"peak_calc_memory_mb\":") != std::string::npos)
        {
            size_t pos = line.find(": ") + 2;
            size_t end = line.find(",", pos);