alexfh wrote: Just to confirm: is this the intentional outcome of this patch? https://gcc.godbolt.org/z/Kf9YK1qM3 ``` enum { a = 1<<12, b = (-1)<<13 }; ``` ``` <source>:3:9: error: expression is not an integral constant expression 3 | b = (-1)<<13 | ^~~~~~~~ <source>:3:13: note: left shift of negative value -1 3 | b = (-1)<<13 | ^ ```
Though technically, it's UB before C++20, the diagnostic - "expression is not an integral constant expression" - doesn't sound helpful (how is it not constant or not integral?). And what's worse, is that it's an error rather than a warning that can be disabled. https://github.com/llvm/llvm-project/pull/70307 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
