Question

for example I think of a situation like this:

string param1 (argv[i+1]);

and I know that it is possible that this may look out of array length, is there a way to declare in a program that whenever I put statement like this a default value will be assigned, something like obviously incorrect string param1 (argv[i+1] or “default”);

Answer 1

What about:

string param1((i < argc-1) ? argv[i+1] : "default");