ifoddpage not working

Question

I'm testing ifoddpage but it seems to say that every page is even:

\documentclass{article}

\usepackage{lipsum}
\usepackage{ifoddpage}

\newcommand\printpage{%
Page is \thepage. It is \ifoddpage odd\else even\fi.
}

\begin{document}

\lipsum

\printpage 

\lipsum

\printpage

\end{document}

outputs:

Page 2. It is even.

and then

Page 3. It is even.

Answer 1

You have to include \checkoddpage in your custom macro.

\documentclass{article}

\usepackage{lipsum}
\usepackage{ifoddpage}

\newcommand\printpage{%
Page is \thepage. It is \checkoddpage\ifoddpage odd\else even\fi.
}

\begin{document}

\lipsum

\printpage

\lipsum

\printpage

\end{document}