args

Simple command-line argument parser library for C++.

Limitations

• Can only handle arguments of following format

    --input=23
    --transform

• Cannot handle arguments with same option. Example

    --input=1 --input=2

Use

• Just include the file args.hpp.

• For sample input arguments --input=34 --transform.

args::args args;

//argc and argv are parameters of main function
args.parse(argc,argv);

//Get value as of option as string
std::string str = args["input"].value();

//Get value of option as integer
int inputValue = args["input"].value_as<int>();

//Check argument exists or not
if(args["transform"){

}

if(args["input"){

}

• parse() function returns bool if found any errors parsing arguments.
• If you try to access value of argument that doesn't exist then exception will be thrown.
• So check whether argument exist or not before accessing value or enclose the code in try-catch block.
• Exception will be thrown if you try to acess value of flag (--transform).