https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78736
--- Comment #19 from Jonny Grant <jg at jguk dot org> --- (In reply to Eric Gallager from comment #18) > (In reply to Jonny Grant from comment #17) > > Hello Joseph > > > > This was the test case I created. There isn't any warning output when 'a_t' > > is converted to 'int'. Or even if it was converted to an 'unsigned int' > > > > https://gcc.gnu.org/ml/gcc-help/2019-07/msg00014.html > > > > > > //-O2 -Wall -Wextra -Wconversion -Werror > > > > #include <cstddef> > > typedef enum > > { > > a = -1 > > } a_t; > > > > a_t f() > > { > > return a; > > } > > > > int main() > > { > > int b = f(); > > return b; > > } > > While it's true that g++ prints no warnings for that testcase, I think > that's material for a separate bug. The original bug here was just to add > -Wenum-conversion for the C front-end, which has now been done, so I'm > closing this. Feel free to open new bugs for any missed cases. ok, I added Bug 92159 to add -Wenum-conversion for C++ Bug 92158 my enum test case for C and C++
