Why is argc not a constant?

Question

int main( const int argc , const char[] const argv)

As Effective C++ Item#3 states \"Use const whenever possible\", I start thinking \"why not make

Answer 1

argc is not normally a constant because the function signature for main() pre-dates const.

Since argc is a stack variable, changing it won't affect anything other than your own command line processing.

You are, of course, free to declare it const if you want.