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| author | Paul Eggert <eggert@cs.ucla.edu> | 2015-06-27 10:57:02 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2015-06-27 10:59:08 -0700 |
| commit | efc262f5f8a16d25c0db4e80fa52e693897fa41f (patch) | |
| tree | 6a78ad9a601676202619bbf50eccff61f2936e83 /doc/misc | |
| parent | 5e3fde03b45877d3e30f859a14c10043e637aa63 (diff) | |
| download | emacs-efc262f5f8a16d25c0db4e80fa52e693897fa41f.tar.gz | |
Initialize cl--gensym-counter to 0
Previously it was initialized to a random value, which made it
harder to reproduce earlier Emacs runs. The need for a random
value went away when Emacs introduced and used the #: syntax for
uninterned symbols (Bug#20862).
* doc/misc/cl.texi (Creating Symbols, Common Lisp Compatibility):
Document that cl--gensym-counter now starts with 0.
* lisp/emacs-lisp/cl-lib.el (cl--gensym-counter): Remove.
(cl--random-time): Move to near only remaining use.
* lisp/emacs-lisp/cl-macs.el (cl--gensym-counter): Initialize to 0.
Diffstat (limited to 'doc/misc')
| -rw-r--r-- | doc/misc/cl.texi | 15 |
1 files changed, 3 insertions, 12 deletions
diff --git a/doc/misc/cl.texi b/doc/misc/cl.texi index d7b3f4a0a68..1f38ca98c62 100644 --- a/doc/misc/cl.texi +++ b/doc/misc/cl.texi @@ -2877,14 +2877,8 @@ their names will not conflict with ``real'' variables in the user's code. (Internally, the variable @code{cl--gensym-counter} holds the counter -used to generate names. It is incremented after each use. In Common -Lisp this is initialized with 0, but this package initializes it with -a random time-dependent value to avoid trouble when two files that -each used @code{cl-gensym} in their compilation are loaded together. -Uninterned symbols become interned when the compiler writes them out -to a file and the Emacs loader loads them, so their names have to be -treated a bit more carefully than in Common Lisp where uninterned -symbols remain uninterned after loading.) +used to generate names. It is initialized with zero and incremented +after each use.) @end defun @defun cl-gentemp &optional x @@ -4543,10 +4537,7 @@ example, local @code{special} declarations, which are purely advisory in Emacs Lisp, do not rigorously obey the scoping rules set down in Steele's book. -The variable @code{cl--gensym-counter} starts out with a pseudo-random -value rather than with zero. This is to cope with the fact that -generated symbols become interned when they are written to and -loaded back from a file. +The variable @code{cl--gensym-counter} starts out with zero. The @code{cl-defstruct} facility is compatible, except that structures are of type @code{:type vector :named} by default rather than some |