3

It keeps telling me: \begin{document} ended by \end{figure}, but I do not understand why. I tried to follow the guidelines for the subfigure package. Here is my MWE:

\documentclass[10pt,journal,a4paper]{IEEEtran}
\usepackage{listings}
\usepackage[pdftex]{graphicx}
\usepackage{subfig}
\usepackage{algorithmic}
\begin{document}

\begin{figure}%
\centering
\begin{subfigure}
nothing in it
\end{subfigure}
\qquad
\begin{subfigure}
\begin{lstlisting}
The code
With a line
\end{lstlisting}
\end{subfigure}
\caption{A program and its corresponding trace.\label{figuretrace}}
\end{figure}
\end{document}

I also tried the command \subfigure without success. I just would like to be able to embed a lstlisting environment inside a subfigure.

What is wrong?

EDIT

Another environment, algorithm, does not work either:

\begin{subfigure}
\begin{algorithm}
The code
With a line
\end{algorithm}
\end{subfigure}

Nor does this work with a table, tabular... Why not?

  • I'm pretty sure \lstlisting is a verbatim environment. In that case, it can't be stuffed inside another environment. Perhaps the verbatimbox package would give an acceptable alternative to lstlisting for your situation. – Steven B. Segletes May 30 '13 at 13:48
  • David Carlisle may have a solution to the algorithm problem at tex.stackexchange.com/questions/110206/…. Once you save it in a box, you can regurgitate the box in the subfigure. – Steven B. Segletes May 30 '13 at 14:10
  • 1
    Please read the IEEEtran-HOWTO. The usage of subfigure is not recommended; you should use subfig instead (pags 9 and 10 of the HOWTO). Also the algorithm floating environment shouldn't be used with this class (page 10 of the HOWTO document). – Gonzalo Medina May 30 '13 at 14:10
  • subfig yields the same errors in my case. I updated the question. – Mikaël Mayer May 30 '13 at 14:14
2

using my verbatimbox suggestion from the comment:

\documentclass[10pt,journal,a4paper]{IEEEtran}
\usepackage{verbatimbox}
%\usepackage{listings}
\usepackage[pdftex]{graphicx}
\usepackage{subfigure}
\begin{document}

\begin{verbbox}
The code
With a line
\end{verbbox}
\begin{figure}%
\centering
\begin{subfigure}
nothing in it
\end{subfigure}
\qquad
\begin{subfigure}
\theverbbox
\end{subfigure}
\caption{A program and its corresponding trace.\label{figuretrace}}
\end{figure}
\end{document}

enter image description here

  • Good solution. I need a refinement (see my question) – Mikaël Mayer May 30 '13 at 13:55
  • @MikaëlMayer In my toolbox, I have a hammer with verbatimbox written on it, but I can't find my algorithm hammer at the moment. – Steven B. Segletes May 30 '13 at 14:04
2

Please follow the recommendation from the IEEEtran-HOWTO document

  1. The use of the obsolete subfigure package is not recommended; you should use subfig instead (pags 9 and 10).

  2. The algorithm floating environment from the algorithm or algorihtm2e packages shouldn't be used with this class (page 10).

In the following example I used the subfig package (loaded as recommended in the HOWTO document) to include the subfigures; the listing was saved in a lrbox first, and then the box was used inside the \subfloat command:

\documentclass[10pt,journal,a4paper]{IEEEtran}
\usepackage{listings}
\usepackage{graphicx}
\ifCLASSOPTIONcompsoc
\usepackage[caption=false,font=normalsize,labelfont=sf,textfont=sf]{subfig}
\else
\usepackage[caption=false,font=footnotesize]{subfig}
\fi

\lstset{basicstyle=\ttfamily\small}

\begin{document}

\newsavebox\mybox
\begin{lrbox}{\mybox}
\begin{lstlisting}
The code
With a line
\end{lstlisting}
\end{lrbox}

\begin{figure}
\centering
\subfloat{%
nothing in it
}\qquad
\subfloat{\usebox\mybox}\qquad
\caption{A program and its corresponding trace.\label{figuretrace}}
\end{figure}

\end{document}

enter image description here

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