https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105581
Bug ID: 105581 Summary: boolean types and relational operators problem Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: dcb314 at hotmail dot com Target Milestone: --- For this C code: void g( int ); void f( bool a, bool b) { if (a < b) g( 1); } recent gcc doesn't find a problem: $ /home/dcb/gcc/results/bin/gcc -c -g -O2 -Wall -Wextra -pedantic may12a.cc $ Here is cppcheck complaining: $ /home/dcb/cppcheck/trunk.git/cppcheck --enable=all may12a.cc may12a.cc:6:8: style: Comparison of a variable having boolean value using relational (<, >, <= or >=) operator. [comparisonOfBoolWithBoolError] if (a < b) ^ $ There is an example in the gcc source code: trunk.git/gcc/sreal.h:72:25: style: Comparison of a variable having boolean value using relational (<, >, <= or >=) operator. [comparisonOfBoolWithBoolError] Source code is return negative > other_negative;