Function main

example/4_async_file_processing_version_2/source/main.cpp:62–91

}

int main(int argc, const char* argv[]) {
    if (argc < 4) {
        const auto help_msg = "please pass all necessary arguments\n\
argv[1] - the file to process\n\
argv[2] - the character to replace\n\
argv[3] - the character to replace with";

        std::cerr << help_msg << std::endl;
        return -1;
    }

    if (std::strlen(argv[2]) != 1 || std::strlen(argv[3]) != 1) {
        std::cerr << "argv[2] and argv[3] must be one character only" << std::endl;
        return -1;
    }

    const auto file_path = std::string(argv[1]);
    const auto from_char = argv[2][0];
    const auto to_char = argv[3][0];

    concurrencpp::runtime runtime;

    try {
        replace_chars_in_file(runtime.background_executor(), runtime.thread_pool_executor(), file_path, from_char, to_char).get();
    } catch (const std::exception& e) {
        std::cerr << e.what() << std::endl;
    }

    return 0;
}