+% Command for section and chapters
+%
+\newcommand{\capref}[1]{cap.~\ref{#1}}
+\newcommand{\secref}[1]{sez.~\ref{#1}}
+%
+% Macro to create a special environment for function prototypes
+% boxed description
+%
+\newenvironment{prototype}[2]
+{% defining what is done by \begin
+ \center
+ \footnotesize
+ \begin{minipage}[c]{14cm}
+ \par \texttt{\#include <#1>}
+% \par \
+ \par \texttt{#2}
+% \begin{lstlisting}{}
+% #1
+% #2
+% \end{lstlisting}
+ \begin{list}{}{}
+ \item
+}
+{% defining what is done by \end
+ \end{list}
+ \par
+\par \texttt{ }
+\end{minipage}
+\normalsize
+\par
+}
+\newenvironment{errlist}{\begin{description*}}{\end{description*}}
+
+%
+% Slighty different envirnoment to be used for multi-header,
+% multi-functions boxed description
+%
+\newcommand{\headdecl}[1]{\item\texttt{\#include <#1>}}
+\newcommand{\funcdecl}[1]{\item\texttt{#1}\par}
+\newenvironment{functions}
+{% defining what is done by \begin
+ \footnotesize
+ \par
+ \vspace{4pt}
+ \centering
+ \
+ \begin{minipage}[c]{14cm}
+ \begin{description*}{}{}
+}
+{% defining what is done by \end
+ \end{description*}
+ \par
+ \end{minipage}
+ \vspace{6pt}
+ \normalsize
+%\break
+}
+%
+% Wrapper for shell command, functions, filenames, links,
+% variables, macros, and everything can be useul,