1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | #include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>
// ∙ A memory address is just a number.
// ∙ When you print a memory address using printf(…), the format code is "%p" and
// you must typecast the address to void*.
// ∙ void* just means an address of anything.
// - int* means an address of an int.
int main(int argc, char* argv[]) {
int n = 5; // n gets the value 5.
int* a_n = &n; // a_n is declared as an address of an int.
// a_n gets the address of n.
printf("n == %d\n", n);
printf("a_n == %p\n", (void*)a_n);
n = 9;
printf("n == %d\n", n);
printf("a_n == %p\n", (void*)a_n);
return EXIT_SUCCESS;
}
/* vim: set tabstop=4 shiftwidth=4 fileencoding=utf-8 noexpandtab: */
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