Created
December 20, 2016 09:11
-
-
Save zhouqiang-cl/6f28d42e056330821dbdde03d400486b to your computer and use it in GitHub Desktop.
common lisp 的函数 COPY-SYMBOL
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| 语法 | |
| copy-symbol symbol &optional copy-properties => new-symbol | |
| 参数和值 | |
| symbol --- 一个 symbol | |
| copy-properties --- 一个 generalized boolean | |
| new-symbol --- 一个新的,没被扣押的 symbol | |
| 描述 | |
| 拷贝一个 symbol | |
| 代码 | |
| * (setq fred 'fred-smith) | |
| FRED-SMITH | |
| * (setf (symbol-value fred) 3) | |
| 3 | |
| * (setq fred-clone-1a (copy-symbol fred nil)) | |
| #:FRED-SMITH | |
| * (symbol-value 'fred-clone-1a) | |
| #:FRED-SMITH |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment