/* scope.c
 * Demonstrate different scopes in C. C has file scope, function (local) scope, for loop scope, and block scope 
*/

#include <stdio.h>

int file = 0;

void func1( ) {
    int local = 5;
    printf( "local to func1 %d\n", local );
    
    if (local > 0) {
        int b = 5; // b has block scope
        printf( "b is %d\n", b );
    }    
    
    for (int i =0;  i < 3; i++) {
        int i = 4; // this definition of i shadows the one at the for loop level
        printf( "i is %d\n", i );
    }    
    
}

int main( int argc, char* argv[] ) {
    func1();
    printf( "Here is file: %d\n", file );
    file = 7;
    printf( "Here is file now: %d\n", file );
//     printf( "local to func1 %d\n", local );
    return 0;
}