procyberian/emacs
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

(Declaring Functions): Add findex. Mention `external' files.

Browse source
This commit is contained in:
Glenn Morris 2007-11-29 04:41:17 +00:00
parent cbfc51932e
commit c45400672f
1 changed files with 6 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
doc/lispref/functions.texi
View file

@ -1227,6 +1227,7 @@ following the definition, just like macros.
@section Telling the Compiler that a Function is Defined
@cindex function declaration
@cindex declaring functions
@findex declare-function
Byte-compiling a file often produces warnings about functions that the
compiler doesn't know about (@pxref{Compiler Errors}). Sometimes this
@ -1289,6 +1290,11 @@ you call a function that is defined only on certain systems. Most
of the primitive functions of Emacs are always defined so they will
never give you a warning.
Sometimes a file will optionally use functions from an external package.
If you prefix the filename in the @code{declare-function} statement with
@samp{ext:}, then it will be checked if it is found, otherwise skipped
without error.
@node Function Safety
@section Determining whether a Function is Safe to Call
@cindex function safety