compareBoolExpressionWithInt
ftp://ftp.de.debian.org/debian/pool/main/m/mpfr4/mpfr4_4.2.2.orig.tar.xz
2.18.0 mpfr-4.2.2/tests/tsubnormal.c:66:19: warning: Comparison of a boolean expression with an integer. [compareBoolExpressionWithInt]