`size_t' makes this safeguard unnecessary.

src/list.c

@@ -27,10 +27,6 @@ void deInitList(List *restrict l) {
 void addToList(List *l, mpz_t n) {
 	if(l->end == l->size) {
 		l->size += BLOCK_SIZE;
-		if(l->size == 0) {
-			fprintf(stderr, "`l->size' has overflowed!\n");
-			exit(1);
-		}
 		void *tmp = realloc(l->list, sizeof(mpz_t) * l->size);
 		if(!tmp) {
 			fprintf(stderr, "Failed to allocate more memory to list!\n");