boost :: program_options:如何添加程序描述文本

Question

我想在打印options_description时在允许的选项描述之前打印一个文本.就像是 :

This program counts from 1 to 10. <--- this is what is missing

Generic options:
-h [ --help ]         Produce help message.
-v [ --version ]      Show program name/version banner and exit.

目前我手动添加:

if (vm.count("help")) {
    cout << "options_description\n\n" << my_options_description << endl;
    return 1;
}

是否可以将其直接存储在options_description对象中？

Answer 1

该options_description班是用于描述选项,而不是程序.Program_options库并非真正用于通用文档.

我想你可以滥用标签:

po::options_description options(
  "This program counts from 1 to 10.\n\nGeneric options");