best C++ command line argument parser [duplicate]

Question

Possible Duplicates:
What parameter parser libraries are there for C++?
C++ Parse Command Line Arguments

What is the best C++ command line argument parser that you can suggest?

Answer 1

I like C's getopt(), but then I'm old. :-)

Answer 2

Boost program_options.

Answer 3

Google's gflags

Answer 4

Try Boost::Program Options. It allows you to read and parse command lines as well as config files.