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Diffstat (limited to 'doc/lispref/internals.texi')
| -rw-r--r-- | doc/lispref/internals.texi | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/doc/lispref/internals.texi b/doc/lispref/internals.texi index fc5ce594e61..25892d4b57c 100644 --- a/doc/lispref/internals.texi +++ b/doc/lispref/internals.texi @@ -1031,10 +1031,9 @@ number of arguments. They work by calling @code{Ffuncall}. @file{lisp.h} contains the definitions for some important macros and functions. - If you define a function which is side-effect free, update the code -in @file{byte-opt.el} that binds @code{side-effect-free-fns} and -@code{side-effect-and-error-free-fns} so that the compiler optimizer -knows about it. + If you define a function which is side-effect free or pure, give it +a non-@code{nil} @code{side-effect-free} or @code{pure} property, +respectively (@pxref{Standard Properties}). @node Writing Dynamic Modules @section Writing Dynamically-Loaded Modules |