made work: get/set at index in list

2023-12-25 02:05:26 +01:00
parent b00858c9be
commit 27068b0381
5 changed files with 105 additions and 34 deletions
@@ -223,3 +223,82 @@ listRemoveAt(list_t* l, int index) {
        l->capacity /= 2;
    }
 }
+
+void
+listSetAt(list_t* l, int index, dataType_e type, void* element) {
+    if (l->size == 0) {
+        listPush(l, type, element);
+    } else if (index >= l->size || index < 0) {
+        fprintf(stderr, "index out of range\nmust be between 0 and %d, is %d\n", l->size-1, index);
+        exit(EXIT_FAILURE);
+    }
+
+    switch (type) {
+        case INT:
+            listRemoveAt(l, index);
+            if (index == l->size) {
+                l->data->size += 1;
+                if (l->data->size == l->data->capacity) {
+                    l->data->capacity *= 2;
+                }
+            }
+            listInsertAt(l, index, INT, element);
+            break;
+        case FLOAT:
+            listRemoveAt(l, index);
+            if (index == l->size) {
+                l->data->size += 1;
+                if (l->data->size == l->data->capacity) {
+                    l->data->capacity *= 2;
+                }
+            }
+            listInsertAt(l, index, FLOAT, element);
+            break;
+        case CHAR:
+            listRemoveAt(l, index);
+            if (index == l->size) {
+                l->data->size += 1;
+                if (l->data->size == l->data->capacity) {
+                    l->data->capacity *= 2;
+                }
+            }
+            listInsertAt(l, index, CHAR, element);
+            break;
+        case VECTOR:
+            listRemoveAt(l, index);
+            if (index == l->size) {
+                l->data->size += 1;
+                if (l->data->size == l->data->capacity) {
+                    l->data->capacity *= 2;
+                }
+            }
+            listInsertAt(l, index, VECTOR, element);
+            break;
+        case LIST:
+            listRemoveAt(l, index);
+            if (index == l->size) {
+                l->data->size += 1;
+                if (l->data->size == l->data->capacity) {
+                    l->data->capacity *= 2;
+                }
+            }
+            listInsertAt(l, index, LIST, element);
+            break;
+        default:
+            fprintf(stderr, "specify a valid vector type\n");
+            exit(EXIT_FAILURE);
+    }
+}
+
+void*
+listGetAt(list_t* l, int index) {
+    if (l->size == 0) {
+        fprintf(stderr, "list is empty\n");
+        exit(EXIT_FAILURE);
+    } else if (index >= l->size || index < 0) {
+        fprintf(stderr, "index out of range\n");
+        exit(EXIT_FAILURE);
+    }
+
+    return vectorGetAt((vector_t*)vectorGetAt(l->data, index), 0);
+}