In this page, I've found one way to display one counter only if it is used at least two times.
The problem with this solution is that it doesn't work with two counters. Is there a way to allow this kind of feature ?
\documentclass{article}
\makeatletter
\newcommand{\defineoneshotcounter}[1]{%
\newcounter{#1}
\newcounter{#1@helper}
\expandafter\newcommand\csname show#1\endcsname[1][\arabic]{%
\stepcounter{#1}%
\stepcounter{#1@helper}%
\@ifundefined{#1@reset@\the\csname c@#1@helper\endcsname}{##1{#1}}{}%
}
\@namedef{reset#1}{%
\ifnum\csname c@#1\endcsname=1\if@filesw
\immediate\write\@auxout{%
\string\global\string\@namedef{#1@reset@\the\csname c@#1@helper\endcsname}{}%
}%
\fi\fi
\setcounter{#1}{0}%
}
}
\makeatother
\defineoneshotcounter{FirstCounter}
\newcommand{\FirstCounterStyle}[1]{\{\arabic{#1}\}}
\defineoneshotcounter{SecundCounter}
\newcommand{\SecundCounter}[1]{\{\arabic{#1}\}}
\setlength{\parindent}{0cm}
\begin{document}
\section{First counter}
TEST : \showFirstCounter,
TEST : \showFirstCounter,
TEST : \showFirstCounter,
RESET : \resetFirstCounter
TEST : \showFirstCounter[\alph],
TEST : \showFirstCounter[\alph],
RESET : \resetFirstCounter
TEST : \showFirstCounter,
RESET : \resetFirstCounter
TEST : \showFirstCounter[\FirstCounterStyle],
TEST : \showFirstCounter[\FirstCounterStyle],
TEST : \showFirstCounter[\FirstCounterStyle],
TEST : \showFirstCounter[\FirstCounterStyle],
RESET : \resetFirstCounter
TEST : \showFirstCounter,
RESET : \resetFirstCounter
TEST : \showFirstCounter,
TEST : \showFirstCounter,
RESET : \resetFirstCounter
\section{Secund counter}
TEST : \showSecundCounter,
TEST : \showSecundCounter,
TEST : \showSecundCounter,
RESET : \resetSecundCounter
TEST : \showSecundCounter[\alph],
TEST : \showSecundCounter[\alph],
RESET : \resetSecundCounter
TEST : \showSecundCounter
\end{document}