struct MyStruct {

  int member_a;

};
int main(){

MyStruct s;//method 1

MyStruct * ps;//method 2

return 0;
}

// Example 1
// Referencing a structure member locally in "main()" with the "dot operator"

#include <stdio.h>

struct Test // unique definition of the struct
{
    int x;
};

int main(void)
{
    struct Test sTest; // we create an instance of the struct

    sTest.x = 2;       // we assign a value to the member of the struct

    printf("x = %dn",sTest.x);

    return 0;
}

MyStruct s;//method 1

MyStruct * ps;//method 2

MyStruct s;

MyStruct * ps;