parsing argc and argv in c++

Question

I want to learn more C++... Usually I make a for loop to parse argv, and I wind up with a bunch a C-style strings. I want to do something similar in C++, but preferably without reading from /proc/whatever. At first, I tried to convert the C-style string to a C++ style string without results... The frustrating bit is that everyone on SO seems to want to know how to go the other way, which is what c_str() is for. What's a good C++ way to do this (ie parse argv)?

Also, one note, I'm looking for a unix style answer, all the techniques for conversion I've seen have to do with Windows, which I'm completely uniterested in.

Caresse

Just curious... did you get the idea that you need to read /proc from this article? blog.linuxgamepublishing.com/2009/10/12/… – Shephard

no, I did not... I hate the 15 char rule here – Caresse

Answer 1

I'm not sure I fully understand the question.

The cleanest method I know to get all the arguments in an easy to use array is:

std::vector<std::string> v(argv, argv + argc);

But if you're looking for a way to really parse the data, check out Boost.ProgramOptions.

Blinni

+1 Boost program options is awesome. Makes it so much easier to make a command line application. – Tame

Answer 2

Are you having trouble converting argv's to strings? You can just do:

string s(argv[i]);

...where i is a valid index into argv.

Whichever