int main(int argc, char *argv[])
{
int value = 10;
// test out THE_AGE accessors
log_info("My name: %s, age: %d", MY_NAME, get_age());
set_age(100);
log_info("My age is now: %d", get_age());
// test out THE_SIZE extern
log_info("THE_SIZE is: %d", THE_SIZE);
print_size();
// test the ratio function static
log_info("Ratio at first: %f", update_ratio(2.0));
log_info("Ratio again: %f", update_ratio(10.0));
log_info("Ratio once more: %f", update_ratio(300.0));
// test the scope demo
int count = 4;
scope_demo(count);
scope_demo(count * 20);
log_info("count after calling scope_demo: %d", count);
pass_by_value(value);
pass_by_reference(&value);
return 0;
}
int main(void)
{
struct rectangle a, b;
struct rectangle *p = &b;
a.length = 10;
a.breadth = 9;
a.area = 0;
b.length = 8;
b.breadth = 10;
b.area = 10;
pass_by_value(a);
/*
* Not we pass the address of struct 'b' here
*/
pass_by_reference(p);
/*
* Understand why the area of a is zero
*/
printf("The area of rectangle a is %d\n", a.area);
/*
* On the contrary, area of b is calculated correctly.
* Understand the difference between passing by value
* and passing by reference
*/
printf("The area of rectangle b is %d\n", b.area);
return 0;
}
int main(int argc, char *argv[])
{
int n = 2;
log_info("n = %d", n);
log_info("By value example: %d", pass_by_value(n));
log_info("n = %d", n);
log_info("By reference example: %d", pass_by_reference(&n));
log_info("n = %d", n);
return 0;
}
main()
{
int initial_number = 1;
printf("initial_number is %d\n", initial_number);
getchar();
/*Call function pass_by_value()*/
pass_by_value(initial_number);
getchar();
printf("\ninitial_number is still %d\n", initial_number);
getchar();
flushall();
}/*end main*/
int main(int argc, char *argv[])
{
int myvar = 0;
pass_by_value(myvar);
/* myvar = 0 */
fprintf(stdout, "%d\n", myvar);
pass_by_reference(&myvar);
/* myvar = 42 */
fprintf(stdout, "%d\n", myvar);
return 0;
}
