% This macro source file is from the four volume series
% "TeX in Practice" by Stephan von Bechtolsheim, published
% 1993 by Springer-Verlag, New York.
% Copyright 1993 Stephan von Bechtolsheim.
% No warranty or liability is assumed.
% This macro may be copied freely if no fees other than
% media cost or shipping charges are charged and as long
% as this copyright and the following source code itself
% is not changed. Please see the series for further information.
%
% Version: 1.0
% Date: May 1, 1993
%
%
% This source code is documented in 26.6, p. III-365.
% Original source in file "macros6.TEX", starting line 379.
\wlog{L: "legmonth.tip" ["macros6.TEX," l. 379, p. III-365]}%
% This file DOES belong to format "texip."
\InputD{rangetst.tip}
\def\CheckLegalMonth #1{%
    \CheckRange{#1}{1}{12}% 
    {\string\CheckLegalMonth: month #1 out of range.}%
}