added find, more tests

test_array.c

@@ -22,6 +22,10 @@ void sub4(void *i, size_t, KekeArray *) {
 bool heart(void *i, size_t, KekeArray *) {
 	return *(int *)i < 3;
 }
+bool lt2(void *i, size_t, KekeArray *) {
+	return *(int *)i < 2;
+}
+
 
 void add(void *vx, void *vacc) {
 	int *x = (int *)vx;
@@ -120,6 +124,10 @@ int main(void) {
 	keke_array_foreach(array4, output);
 	puts("\n");
 
+	int *l = keke_array_find(array2, lt2);
+    puts("Expected value:\n1");
+    printf("%d\n\n", *l);
+
 	j = 0;
 	keke_array_reduce(array4, add, &j);
 	printf("Expected value:\n7\n%d\n\n", j);
@@ -127,6 +135,5 @@ int main(void) {
     keke_array_free(array);
     keke_array_free(array2);
     keke_array_free(array4);
-	puts("\n");
 	return 0;
 }