Hello, I copy pasted the source into my latex file: \DeclareRobustCommand{\Cpp} {\valign{\vfil\hbox{##}\vfil\cr \textsf{C\kern-.1em}\cr $\hbox{\fontsize{\ssf@size}{0}\textbf{+\kern-0.05em+}}$\cr}% } But I get the following error message when compiling my source: ! Undefined control sequence.<argument> \ssf @sizel.7 \Cpp I trie to figure out where the problem is but was not able to! Could you please help me to get this workin' ? Here is a basic latex file which does not compile on my system: \documentclass{article} \DeclareRobustCommand{\Cpp}{\valign{\vfil\hbox{##}\vfil\cr%\textsf{C\kern-.1em}\cr%$\hbox{\fontsize{\ssf@size}{0}\textbf{+\kern-0.05em+}}$\cr}%} \begin{document} Test of the \Cpp command. \end{document}
Thank you for your help, Konstantinos Kampouridis.