diff options
Diffstat (limited to 'doc/lispref')
| -rw-r--r-- | doc/lispref/ChangeLog | 5 | ||||
| -rw-r--r-- | doc/lispref/variables.texi | 9 |
2 files changed, 12 insertions, 2 deletions
diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog index c588e81dd1f..6e7a0b7a648 100644 --- a/doc/lispref/ChangeLog +++ b/doc/lispref/ChangeLog @@ -1,3 +1,8 @@ +2012-11-07 Glenn Morris <rgm@gnu.org> + + * variables.texi (Adding Generalized Variables): + Update description of FIX-RETURN expansion. + 2012-11-06 Glenn Morris <rgm@gnu.org> * variables.texi (Setting Generalized Variables): diff --git a/doc/lispref/variables.texi b/doc/lispref/variables.texi index a7134af20bd..fb98b3cd035 100644 --- a/doc/lispref/variables.texi +++ b/doc/lispref/variables.texi @@ -2089,8 +2089,13 @@ no problem with, e.g., @code{car} and @code{setcar}, because @code{setcar} returns the value that it set. If your @var{setter} function does not return @var{value}, use a non-@code{nil} value for the @var{fix-return} argument of @code{gv-define-simple-setter}. This -wraps the @code{setf} expansion in @code{(prog1 @var{value} @dots{})} -so that it returns the correct result. +expands into something equivalent to +@example +(let ((temp @var{value})) + (@var{setter} @var{args}@dots{} temp) + temp) +@end example +so ensuring that it returns the correct result. @end defmac |