Add push function

header/vectors.h

@@ -19,7 +19,7 @@ typedef int type;
 typedef struct vector_* vector;
 
 vector vector_create();
-vector vector_length(vector vec);
-
+int vector_length(vector vec);
+void vector_push(vector vec, type element);
 
 #endif
\ No newline at end of file

src/test_vectors.c

@@ -13,5 +13,11 @@
 int main()
 {	
 	vector test = vector_create();
+
+	printf("%d \n", vector_length(test));
+
+	vector_push(test, 15);
+
+	printf("%d \n", vector_length(test));
 	return 0;
 }
\ No newline at end of file

src/vectors.c

@@ -24,7 +24,20 @@ vector vector_create()
 	return vec;
 }
 
-vector vector_length(vector vec)
+int vector_length(vector vec)
 {
 	return vec->length;
 }
+
+void vector_push(vector vec, type element)
+{
+	if(vec->length >= vec->capacity)
+	{
+		vec->content = realloc(vec->content, sizeof(type) * vec->capacity * 2);
+		vec->capacity = vec->capacity * 2;
+	}
+
+	vec->content[vec->length] = element;
+	vec->length++;
+}
+