/*
    sizes.c
    Jeff Ondich, 9 Jan 2022
    Modified by Tanya Amert for Fall 2024

    How many bytes are in some of our favorite types?

    Compile as usual:

        gcc -Wall -Werror -g -o sizes sizes.c

    Run with no command-line arguments:

        ./sizes
*/

#include <stdio.h>

// Prints the sizes (in bytes) of many common types, and some
// not-so-common ones.
int main(int argc, char *argv[])
{
    // Common types: whole numbers
    printf("sizeof(char) = %ld\n", sizeof(char));
    printf("sizeof(short) = %ld\n", sizeof(short));
    printf("sizeof(int) = %ld\n", sizeof(int));
    printf("sizeof(long) = %ld\n", sizeof(long));
    printf("\n");

    // Common types: oooh, stars
    printf("sizeof(char *) = %ld\n", sizeof(char *));
    printf("sizeof(int *) = %ld\n", sizeof(int *));
    printf("\n");

    // Common types: floating-point numbers
    printf("sizeof(float) = %ld\n", sizeof(float));
    printf("sizeof(double) = %ld\n", sizeof(double));
    printf("\n");

    // The sizeof operator returns something of type size_t
    printf("sizeof(size_t) = %ld\n", sizeof(size_t));
    printf("\n");

    // TODO: Predict what the next two blocks of code will
    // do BEFORE you run them.  Were you right?  If not, why?

    // // We can use typedef to give fun/useful names to types
    // typedef unsigned short dog;
    // dog cheddar = 4;
    // printf("sizeof(cheddar) = %ld\n", sizeof(cheddar));
    // printf("sizeof(dog) = %ld\n", sizeof(dog));
    // printf("\n");

    // // What about C-strings and arrays?
    // char *mystr = "hi";
    // char myarr[3] = { 'h', 'i', '\0' };
    // printf("sizeof(\"hi\") = %ld\n", sizeof("hi"));
    // printf("sizeof(mystr) = %ld\n", sizeof(mystr));
    // printf("sizeof(myarr) = %ld\n", sizeof(myarr));

    return 0;
}