I was attempting to generate different programming languages code snippets to highlight the different syntax in different programming languages like: Python, Matlab and C++ (more to be added later).

In the code given below, I am getting the error:

! TeX capacity exceeded, sorry [input stack size=5000]. \cl@chapter ->\cl@chapter \@elt {matlab} l.73 ...code,number within=chapter]{\inputcppcode} [3][]{listing options={lan...

Can you tell me how to get rid of this error to get my file to compile correctly?



\documentclass[a4paper, 10pt, oneside, fleqn, openright]{article}




\definecolor{mainColor}{RGB}{211, 47, 47} % some dark red

    numbersep= 7mm,
    keywords={var, func, extends},
    xleftmargin=3mm,% marge ajouté à gauche du tableau (à configurer en dernier pour l'alignement global du tableau)
    framesep=2mm, %distance texte bord du cadre (limite de la background color)

\newtcblisting[use counter=lstlisting]{codeblock}[2][]{%
        fonttitle=\bfseries,before upper={\hspace*{-1em}\codeimgpy~#2},%
        title after break={\centering\footnotesize\itshape\strut\lstlistingname~\thelstlisting~--~continued},%
        listing only,listing options={xleftmargin=-1mm},
        after upper={\centering\strut\lstlistingname~\thelstlisting:~#2},
        frame hidden,arc=0pt,outer arc=0pt,boxrule=0pt,frame code={\draw[gray,line width=2mm] ([xshift=-0.5pt]frame.north west) -- ([xshift=-0.5pt]frame.south west);},#1}

\newtcbinputlisting[use counter=matlab,list inside=matlab,number within=chapter]{\inputmatlab}[3][]{listing options={style=Matlab-editor},%
        fonttitle=\bfseries,before upper={\hspace*{-1em}\codeimg~#2},%
    title after break={\centering\footnotesize\itshape\strut Matlab Code~\thematlab~--~continued},%
     listing only,listing options={xleftmargin=-1mm,#1,style=Matlab-editor},
     after upper={\centering\strut {\bfseries Matlab Code~\thematlab:}~#2},
     frame hidden,arc=0pt,outer arc=0pt,boxrule=0pt,
     listing file={#3},#1}

\newtcbinputlisting[use counter=cppcode,list inside=cppcode,number within=chapter]{\inputcppcode}[3][]{listing options={language=C++},%
        fonttitle=\bfseries,before upper={\hspace*{-1em}\codeimgcpp~#2},%
    title after break={\centering\footnotesize\itshape\strut C++ Code~\thecppcode~--~continued},%
     listing only,listing options={xleftmargin=-1mm,#1,language=C++},
     after upper={\centering\strut {\bfseries C++ Code~\thecppcode:}~#2},
     frame hidden,arc=0pt,outer arc=0pt,boxrule=0pt,
     listing file={#3},#1}


% create a file for output
!touch testFile.txt
fid = fopen('testFile.text', 'w')
for i=1:10
  fprintf(fid,'%6.2f \n', i);


\begin{codeblock}{Les bases de GDScript}
var nombreDeGardes = 4 #déclaration d'une variable
nombreDeGardes = plusDeux(nombreDeGardes) #appel d'une fonction avec la variable nombreDeGardes passée en paramètre

func maFonction(): #cette ligne déclare une nouvelle fonction nommée maFonction
    var variable1 = 7 #nouvelle variable dont la valeur est 7
    variable2 = ['un', 'deux', 'trois'] #variable assignée à un tableau contenant trois chaines de caractères

func plusDeux(argument1):
    return argument1 + 2

\inputmatlab{Expansion Algorithm}{sample.m}

% https://www.programiz.com/cpp-programming/examples/add-numbers
\inputcppcode{Example C++ Code}{cppcodex.cpp}

  • 2
    I can reproduce the error in the much smaller gist.github.com/moewew/90f5a487685014daee58617d37a9a571. The error goes away if I remove the number within=chapter from the second definition ... seems the bug is hiding there. – moewe Nov 18 at 6:27
  • 2
    Come to think of it article does not have sections, so the behaviour of number within=chapter is probably undefined. If I go with something like number within=section, everything seems to be fine. – moewe Nov 18 at 6:31
  • @moewe, Thanks for your inputs. I think you found the solution. If I change the document to book, it works. Thank you! – Joe Nov 18 at 6:33
  • 1
    Indeed the same error can be reproduced with gist.github.com/moewew/… – moewe Nov 18 at 6:36
up vote 6 down vote accepted

The problematic code is the numberwithin=chapter in the definitions. The article document class does not have a counter chapter since it does not have \chapters and so resetting by chapter is not really a well-defined concept.

The same issue can be reproduced with


\newtcbinputlisting[use counter=a, number within=chapter]{\inputverba}[1]{listing file={#1}}
\newtcbinputlisting[use counter=b, number within=chapter]{\inputverbb}[1]{listing file={#1}}



and ultimately by tracing back what number within does also with




This error occurs when you want to \@addtoreset a second time to a counter that does not exist.

Incidentally, \@removefromreset has a bit of error checking here, according to source2e (p. 147, file m)

Even through this is internal and the programmer should know what he/she is doing we test here if counter #2 is defined.

but no such error checking is done for \@addtoreset.

The solution is to either pick an existing counter to reset with, i.e. number within=section, or to use a document class with \chapters, i.e. report or book.

Your Answer

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Not the answer you're looking for? Browse other questions tagged or ask your own question.