A simple C++ getopt component

dr_opt is a command options parser (similar to the most basic functionality of getopt.h) that I can use between multiple platforms. argc and args must be provided to setopt before using the other functions.

void setopt(int argc, char* args[]);
Used to format all incoming command line option data.

bool hasopt(const std::string& flag);
Used for checking if an option was provided on the command line.

const std::string& getopt(const std::string& flag);
If an option is accompanied by a string parameter, then that parameter is returned. Returns "" otherwise.

• premake5
• batch and bash scripts create vs2019 (Solution) and gmake2 (Makefile) files respectfully

• Copy the dr_opt header and source file (not test.cpp) into a project

#include <iostream>
#include <string>

#include "dr_opt.h"

int main(int argc, char* args[]) {
    dr::setopt(argc, args);

    // You can also use flags more than one character in length
    if(dr::hasopt("a")) {
        // "-a" flag was found in command options
        std::string aOpt = dr::getopt("a");
        // "aOpt" now contains the "-a" flag parameter
        std::cout << aOpt << std::endl;
    }

    return 0;
}