c_mem_safety/array_test.c

#include <stdio.h>
#include <stdlib.h>

struct Vektor {
	int count;
	int *v;
};
typedef struct Vektor Vektor;

Vektor create_Vektor(int count) {
	Vektor self;
	self.count = count;
	self.v = (int*) calloc(self.count, sizeof(int));
	return self;
}

int sum_Vektor(Vektor *self) {
	int s = 0;
	for(int i = 0; i < self->count; ++i) {
		s += self->v[i];
	}
	return s;
}

void delete_Vektor(Vektor *self) {
		if(self->v) free(self->v);
}

int main() {
	int n;
	printf("Number of elements to sum: ");
	scanf(" %d", &n);
	Vektor data = create_Vektor(n);
	// printf("vektor.count:%d\n", data.count);

	for(int i = 0; i < data.count; ++i) {
		scanf(" %d", &n);
		data.v[i] = n;
	}
	// n = 0; for(int i = 0; i < data.count; ++i) n += data.v[i];
	n = sum_Vektor(&data);
	printf("Sum: %d\n", n);

	// Need to not forget this
	delete_Vektor(&data);

	return 0;
}