Method get_key_or_arr

subprojects/llama.cpp/src/llama-model-loader.cpp:429–466

    // get array of n <= N_MAX elements, or a single element repeated n times
    template<typename T, size_t N_MAX>
    bool llama_model_loader::get_key_or_arr(const std::string & key, std::array<T, N_MAX> & result, uint32_t n, bool required) {
        const int kid = gguf_find_key(meta.get(), key.c_str());

        if (kid < 0) {
            if (required) {
                throw std::runtime_error(format("key not found in model: %s", key.c_str()));
            }
            return false;
        }

        if (n > N_MAX) {
            throw std::runtime_error(format("n > N_MAX: %u > %u for key %s", (uint32_t) n, (uint32_t) N_MAX, key.c_str()));
        }

        if (gguf_get_kv_type(meta.get(), kid) == GGUF_TYPE_ARRAY) {
            struct GGUFMeta::ArrayInfo arr_info =
                GGUFMeta::GKV<GGUFMeta::ArrayInfo>::get_kv(meta.get(), kid);

            if (n != arr_info.length) {
                throw std::runtime_error(format("key %s has wrong array length; expected %u, got %u", key.c_str(), n, (uint32_t) arr_info.length));
            }

            return get_arr(key, result, required);
        }

        T value;

        bool ok = get_key(key, value, required);
        if (!ok) {
            return false;
        }

        for (uint32_t i = 0; i < n; i++) {
            result[i] = value;
        }

        return true;
    }

    template<typename T>
    bool llama_model_loader::get_key_or_arr(enum llm_kv kid, T & result, uint32_t n, bool required) {