box-o-sand/lcthw-remnants/ex22_main.c

#include "ex22.h"
#include "dbg.h"

const char *MY_NAME = "Zed A. Shaw";


void scope_demo(int count)
{
    log_info("count is: %d", count);

    if(count > 10) {
        int count = 100;  // BAD! BUGS!

        log_info("count in this scope is %d", count);
    }

    log_info("count is at exit: %d", count);

    count = 3000;

    log_info("count after assign: %d", count);
}


int main(int argc, char *argv[])
{
    // 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());

    int new_age = 44;
    log_info("Setting age directly to %d", new_age);
    int *age = get_age_pointer();
    *age = new_age;

    log_info("My age is now: %d", get_age());

    // test out THE_SIZE extern
    log_info("THE_SIZE is: %d", THE_SIZE);
    print_size();

    THE_SIZE = 9;

    log_info("THE_SIZE is now: %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));

    // accessing a function static
    double *func_static_value = get_function_static(4.0);
    log_info("get_function_static(4.0) = %.1f", *func_static_value);
    double new_func_static_value = 8.0;
    log_info("Setting the function static var directly to %.1f",
            new_func_static_value);
    *func_static_value = new_func_static_value;
    log_info("get_function_static(4.0) = %.1f", *get_function_static(4.0));

    // test the scope demo
    int count = 4;
    scope_demo(count);
    scope_demo(count * 20);

    log_info("count after calling scope_demo: %d", count);

    return 0;
}