pass parameter in command line

lingyun · 04-21-2009, 02:54 AM

How to pass parameter in command line in c++ programming?

John VV · 04-21-2009, 03:02 AM

What????
something like this

Code:

export $LIBDIR=/usr/lib/gtk-2.6/lib
./configure --prefix=usr

what is it you want??

tadeas · 04-21-2009, 03:05 AM

Just run the executable and then the parameters after a space. For example:

Code:

./myprogram param1 param2 param3

Or do you mean how to access these parameters in the code?

JohnnyBoy123 · 04-21-2009, 10:37 PM

(I am not a C programmer)

in script you can pass arguments explicitly as
prog arg1 arg2 arg3
and you can refer to all the arguments as $*
so I wonder if you can do
prog $*

billymayday · 04-21-2009, 10:42 PM

Typically in C, your declaration of main would look something like

Code:

main(int argc, char *argv[])

You can then access the command line parameters through the array argv[i] where i = 0 to the number of parameters (argc) less 1.