Why to put argc argv arguments in main when they never accessed?-CodePudding

I often see programs where people put argc and argv in main, but never make any use of these parameters.

int main(int argc, char *argv[]) {
    // never touches any of the parameters
}

Should I do so too? What is the reason for that?

CodePudding user response：

The arguments to the main function can be omitted if you do not need to use them. You can define main this way:

int main(void) {
    // never touches any of the parameters

}

Or simply:

int main() {
    // never touches any of the parameters
}

Regarding why some programmers do that, it could be to conform to local style guides, because they are used to it, or simply a side effect of their IDE's source template system.