Will a value live perpetually when there's no reference to it?

Question

Suppose the following minimal code:

#include 
char character = \'c\';
int main (void)
{
    char character = \'b\';
    printf(\"The current value         


        

Answer 1

You have two separate variables named character: one at file scope set to 'c', whose lifetime is the lifetime of the program, and one in main set to 'b', whose lifetime is that of its scope.

The definition of character in main masks the definition at file scope, so only the latter is accessible.