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 | #include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>
void print_array_of_ints(int* array_of_ints, int num_ints, char* label) {
printf("\n%s\n", label);
for(int i = 0; i < num_ints; i++) {
printf("array_of_ints[%d] == %d;\n", i, array_of_ints[i]);
}
}
int main(int argc, char* argv[]) {
// STATIC array
int array_static[3];
array_static[0] = 5;
array_static[1] = 6;
array_static[2] = 7;
print_array_of_ints(array_static, 3, "STATIC");
// DYNAMIC array
//
// Allocate enough memory (on the heap) for three ints.
int* array_dynamic = malloc(3 * sizeof(*array_dynamic));
array_dynamic[0] = 5;
array_dynamic[1] = 6;
array_dynamic[2] = 7;
print_array_of_ints(array_dynamic, 3, "DYNAMIC");
free(array_dynamic); // "Gives back" the chunk of heap memory at address array_dynamic.
// int* array = malloc(▒); … allocates ▒ bytes on the heap and returns the address
// where they can be found and used.
// free(array); frees (gives back) those bytes.
return EXIT_SUCCESS;
}
/* vim: set tabstop=4 shiftwidth=4 fileencoding=utf-8 noexpandtab: */
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