% SANS.STY
% (c) copyleft 1992, 1996, 1999 J"org Knappen 
% Licence: GNU public licence, version 2
%
% This package makes computer modern sans serif the default font
% \sf switches to the cmr family
%
% This package works can be used with LaTeX2e or with 
% LaTeX2.09 and the New Font Selection Scheme (NFSS)

\@ifundefined{extract@font}
     {\errmessage{The style option `sans' does not make sense if you
                  do not use a format with the new font selection scheme.
                  Please upgrade to LaTeX2e.}
      \endinput}
     {}
\@ifundefined{reset@font}
     {\errmessage{The style option `sans' does not make sense if you
                  do not use LaTeX of Dec 1, 1991 or later.
                  Please upgrade to LaTeX2e.}
      \endinput}
     {}
\renewcommand{\rmdefault}{cmss}
\renewcommand{\sfdefault}{cmr}
\reset@font
\endinput

Exchanges the roles of sans and roman in a cm or ec setup. Does not work for 
other font setups (like times/helvetica), unfortunately.

This package is written by

J"org Knappen, Barbarossaring 43, D-55118 Mainz, Allemagne
Author of the Book: Schnell ans Ziel mit LaTeX2e, Oldenbourg-Verlag
M"unchen, 1997, ISBN 3-486-24199-0.
% /sans.sty