made work: removeAtIndex(x);

demo.c

@@ -8,12 +8,34 @@ int main() {
     listPush(another_list, CHAR, &(char){'x'});
     listPush(another_list, INT, &(int){123});
     listPush(another_list, FLOAT, &(float){3.14});
-    listPush(another_list, LIST, another_list);
-    listPush(another_list, LIST, another_list);
+    printf("do not put the list into itself, it does weird stuff\n");
+    // BIG NONO -> listPush(another_list, LIST, another_list);
+
+    listRemoveAt(another_list, 1);
+
+    list_t* l = listInit();
+
+    listPush(l, INT, &(int){5+2});
+    listPush(l, INT, &(int){5*2});
+    listPush(l, FLOAT, &(float){5/2});
+
+    listPush(another_list, LIST, l);
 
     listPrint(another_list);
 
     listCleanup(another_list);
 
+    // vector_t* v = vectorInit(INT);
+    //
+    // vectorPush(v, &(int){123});
+    // vectorPush(v, &(int){456});
+    // vectorPush(v, &(int){789});
+    //
+    // vectorRemoveAt(v, 1);
+    //
+    // vectorPrint(v);
+    //
+    // vectorCleanup(v);
+
     return 0;
 }

include/list.h

@@ -28,3 +28,5 @@ void listCleanup(list_t* l);                                                // f
 void* listPop(list_t* l);                                                   // popping the last value of the list and returning it
 
 void listInsertAt(list_t* l, int index, dataType_e type, void* element);    // inserts an element at a given index
+
+void listRemoveAt(list_t* l, int index);

include/vector.h

@@ -44,7 +44,8 @@ vectorToString(vector_t* v);							// convert the vector into a regular string
 void* 
 vectorGetAt(vector_t* v, int index);					// get an element at the given index
 
-
+void
+vectorRemoveAt(vector_t* v, int index);
 
 
 

src/list.c

@@ -214,3 +214,12 @@ listInsertAt(list_t* l, int index, dataType_e type, void* element) {
         }
     }
 }
+
+void
+listRemoveAt(list_t* l, int index) {
+    vectorRemoveAt(l->data, index);
+    l->size -= 1;
+    if (l->size == l->capacity) {
+        l->capacity /= 2;
+    }
+}

src/vector.c

@@ -430,3 +430,52 @@ vectorInsertAt(vector_t* v, int index, void* element) {
             exit(EXIT_FAILURE);
     }
 }
+
+void
+vectorRemoveAt(vector_t* v, int index) {
+    if (v->size == 0) {
+        fprintf(stderr, "cannot remove from empty vector\n");
+        exit(EXIT_FAILURE);
+    } else if (index >= v->size || index < 0) {
+        fprintf(stderr, "index out of range\n");
+        exit(EXIT_FAILURE);
+    }
+
+    switch (v->type) {
+        case INT:
+            // move all elements to the right by one
+            for (int i = index; i < v->size; i++) {
+                *((int *)(v->data) + i) = *((int *)(v->data) + i+1);
+            }
+            break;
+        case FLOAT:
+            for (int i = index; i < v->size; i++) {
+                *((float *)(v->data) + i) = *((float *)(v->data) + i+1);
+            }
+            break;
+        case CHAR:
+            for (int i = index; i < v->size; i++) {
+                *((char *)(v->data) + i) = *((char *)(v->data) + i+1);
+            }
+            break;
+        case VECTOR:
+            for (int i = index; i < v->size; i++) {
+                *((vector_t*)(v->data) + i) = *((vector_t*)(v->data) + i+1);
+            }
+            break;
+        case LIST:
+            for (int i = index; i < v->size; i++) {
+                *((list_t*)(v->data) + i) = *((list_t*)(v->data) + i+1);
+            }
+            break;
+        default:
+            fprintf(stderr, "specify a valid vector type\n");
+            exit(EXIT_FAILURE);
+    }
+
+    v->size -= 1;
+    if (v->size < v->capacity/2) {
+        v->capacity /= 2;
+        v->data = realloc(v->data, v->elementSize * v->capacity);
+    }
+}