comparisonOfBoolWithBoolError
ftp://ftp.de.debian.org/debian/pool/main/g/gnuplot-iostream/gnuplot-iostream_0~20251226.git05843bd3.orig.tar.xz
2.21.0 gnuplot-iostream-0~20251226.git05843bd3/gnuplot-iostream.h:1984:26: style: Comparison of a variable having boolean value using relational (<, >, <= or >=) operator. [comparisonOfBoolWithBoolError]