I am trying to define a newcommand using pgfmath. This commands calls a previously defined command but it fails. It propably has to do something with expansion.
I've read this question about expanding pgf macros within commands but I can't get it to work.
\documentclass{article}
\usepackage{tikz}
\newcommand{\mathresult}[1]{\pgfmathparse{#1} \pgfmathresult}
\newcommand{\doublemathresult}[1]{\pgfmathparse{2 * \mathresult{#1}} \pgfmathresult}
\begin{document}
\mathresult{1}
\doublemathresult{1}
\end{document}
The error message is
Incomplete \iffalse; all text was ignored after line