unusedPrivateFunction
ftp://ftp.de.debian.org/debian/pool/main/a/auto-multiple-choice/auto-multiple-choice_1.7.0.orig.tar.gz
2.18.0 auto-multiple-choice-1.7.0/buildpdf.cc:1094:18: style: Unused private function: 'BuildPdf::normalize_matrix_distance' [unusedPrivateFunction]