opts.h File Reference

This file defines the command line argument parsing function header. More...

#include "settings.h"

Go to the source code of this file.

Functions
Settings	options (const int argc, const char **argv)
	Parse the command line arguments and generate the settings from these. More...

Detailed Description

This file defines the command line argument parsing function header.

Definition in file opts.h.

Function Documentation

options()

Settings options	(	const int	argc,
		const char **	argv
	)

Parse the command line arguments and generate the settings from these.

This function parses the command line arguments and generates the corresponding settings. If no argument is given for a specific value then the default value will be used.

Parameters

argc	Number of command line arguments.
argv	Command line arguments.

Definition at line 85 of file opts.cpp.

{
    int SET_SIZE = DEFAULT_SET_SIZE;
    int NUM_SETS = DEFAULT_NUM_SETS;
    int NUM_PLAYERS = DEFAULT_NUM_PLAYERS;
 
    int opt;
    while ((opt = getopt(argc, (char* const*)argv, "s:n:p:h")) != -1) {
        switch (opt) {
            case 's':
                SET_SIZE = atoi(optarg);
                break;
            case 'n':
                NUM_SETS = atoi(optarg);
                break;
            case 'p':
                NUM_PLAYERS = atoi(optarg);
                break;
            case 'h':
                usage(std::cout, argv);
                exit(EXIT_SUCCESS);
            default:  // '?'
                usage(std::cerr, argv);
                exit(EXIT_FAILURE);
        }
    }
 
    Settings settings = {SET_SIZE, NUM_SETS, NUM_PLAYERS};
    if (!valid(settings, argv)) {
        usage(std::cerr, argv);
        exit(EXIT_FAILURE);
    }
    return settings;
}