Use \refstepcounter for exercise environment

diff --git a/exsheet2.cls b/exsheet2.cls
index f140a9f65d70f005a918e0c2f202e4b6f2190a01..833bb6a3f4351d8b2efbb2244a09128512da2265 100644 (file)
--- a/exsheet2.cls
+++ b/exsheet2.cls
@@ -60,8 +60,9 @@
 }}
 
 \newcounter{exsheet2@excounter}
-\setcounter{exsheet2@excounter}{1}
+\setcounter{exsheet2@excounter}{0}
 \newenvironment{exercise}[1][]{%
+  \refstepcounter{exsheet2@excounter}
   \vspace*{2em}%
   \textbf{\theexercise~\arabic{exsheet2@excounter}}
   \ifthenelse{\isempty{#1}}{}{%
@@ -73,7 +74,7 @@
     \fi%
   }%
   \newline}
-{\addtocounter{exsheet2@excounter}{1}}
+{}
 
 \@ifundefined{exsheetshowanswers}{
   \excludecomment{answer}