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 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | #include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include "clog.h"
void print_array(int* array, int size, char* label) {
log_addr(array);
printf("%-6s: ", label);
for(int i = 0; i < size; i++) {
printf("%d ", array[i]);
}
printf("\n");
}
void add_to_array(int* array, int size, int n_to_add, char* label) {
printf("add_to_array(%p, %d, %d, \"%s\")\n", array, size, n_to_add, label);
for(int i = 0; i < size; i++) {
array[i] += n_to_add;
}
}
int main(int argc, char* argv[]) {
int array_1[] = { 10, 11, 12 };
int size = 3;
assert(sizeof(array_1) / sizeof(array_1[0]) == size);
print_array(array_1, size, "int[3]");
// NOTE: You can pass the array directly to a function that accepts an address.
// That function will be able to write to the array (assuming it is writable
// memory).
add_to_array(array_1, size, 10, "array_1");
print_array(array_1, size, "int[3]");
printf("--\n");
int* array_2 = array_1;
assert( array_2 == &array_1[0] );
print_array(array_2, size, "int*");
add_to_array(array_2, size, 10, "array_2");
print_array(array_2, size, "int*");
return EXIT_SUCCESS;
}
/* vim: set tabstop=4 shiftwidth=4 fileencoding=utf-8 noexpandtab: */
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