Print sizes (in bits) of int, long, and pointer types in C

sizeof.c

#include <assert.h>
#include <limits.h>
#include <stdio.h>

int main(void) {
    size_t i = sizeof(int);
    size_t l = sizeof(long);
    size_t p = sizeof(void *);

    assert(i <= INT_MAX/CHAR_BIT);
    assert(l <= INT_MAX/CHAR_BIT);
    assert(p <= INT_MAX/CHAR_BIT);

    i *= CHAR_BIT;
    l *= CHAR_BIT;
    p *= CHAR_BIT;

    printf("%d %d %d\n", (int)i, (int)l, (int)p);
    return 0;
}