Returns t if there are no items in the container.
| empty-p < abstract-bag/set-container > |
| empty-p < basic-queue > |
| empty-p < binary-search-tree > |
| empty-p < contents-as-list-mixin > |
| empty-p < contents-as-sequence-mixin > |
| empty-p < forward-iterator > |
| empty-p < hash-table > |
| empty-p < list > |
| empty-p < priority-queue-on-container > |
| empty-p < quad-tree > |
| empty-p < stack-container > |
| empty-p < t > |
| empty-p < vector > |