Function load_ref

tests/test_vit.cpp:25–56

};

static ref_tensor load_ref(const std::string & path) {
    ref_tensor t;
    // Load shape
    {
        std::ifstream f(path + ".shape");
        if (!f) {
            fprintf(stderr, "  [SKIP] %s.shape not found\n", path.c_str());
            return t;
        }
        std::string line;
        std::getline(f, line);
        size_t pos = 0;
        while (pos < line.size()) {
            size_t end = line.find(',', pos);
            if (end == std::string::npos) end = line.size();
            t.shape.push_back(std::stoi(line.substr(pos, end - pos)));
            pos = end + 1;
        }
    }
    // Load data
    {
        std::ifstream f(path + ".bin", std::ios::binary);
        if (!f) {
            fprintf(stderr, "  [SKIP] %s.bin not found\n", path.c_str());
            t.shape.clear();
            return t;
        }
        t.data.resize(t.numel());
        f.read(reinterpret_cast<char *>(t.data.data()), t.numel() * sizeof(float));
    }
    return t;
}

// Compare two float arrays with tolerance.
// Returns max absolute difference.