Question

I have a C++ program that accepts three inputs: an integer for width, an integer for height, and a filename. Right now, I compile, and run the program like this (assuming I named it prog):

>prog
// hit enter
>128 128 output.ppm

This results in a successful output, but the program description says the proper command-line syntax is:

>prog w h filename

That’s all it says. Does this imply that my program should be able to start on the same line? Perhaps it implicitly means you hit enter after typing the program name, but if not, is there a way to actually do this?

Answer 1

Your program needs to parse command line parameters. Looking at the specification, the expected workflow is

>prog 128 128 output.ppm
//hit enter after the parameters

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