IPAex Gothic にあって Source Han Sans にないグリフをリストアップ

ipaex-vs-sourcehansans.tex

%#!xelatex
\documentclass[xelatex]{bxjsarticle}
\usepackage{xltxtra}
\usepackage{multicol}
\pagestyle{empty}

\ExplSyntaxOn
\NewDocumentCommand{\codepoint}{m}{
U+
\int_compare:nNnTF{#1}<{"1000}{0}{}
\int_compare:nNnTF{#1}<{"100}{0}{}
\int_compare:nNnTF{#1}<{"10}{0}{}
\int_to_Hex:n {#1}
}
\ExplSyntaxOff

\font\ipaex="[ipaexg]" at 10pt
\font\sourcehansans="[SourceHanSans-Regular]" at 10pt

\newcount\uc

\begin{document}
\begin{multicols}{5}

\uc=0 \loop
  \sourcehansans\iffontchar\font\uc \else
    \ipaex\iffontchar\font\uc
      \noindent \codepoint{\uc} \char\uc \par
    \fi
  \fi
  \advance\uc1
\ifnum\uc<"110000 \repeat

\end{multicols}
\end{document}