chrisnc wrote: Without this change, trying to use `ATOMIC_FLAG_INIT` in a constant initialization context yields the following:
https://godbolt.org/z/sTvMs5a95 ``` <source>:3:17: error: non-constant-expression cannot be narrowed from type 'int' to 'atomic_bool' (aka '_Atomic(bool)') in initializer list [-Wc++11-narrowing] 3 | atomic_flag x = ATOMIC_FLAG_INIT; | ^~~~~~~~~~~~~~~~ /opt/compiler-explorer/clang-trunk-20240703/lib/clang/19/include/stdatomic.h:169:28: note: expanded from macro 'ATOMIC_FLAG_INIT' 169 | #define ATOMIC_FLAG_INIT { 0 } | ^ <source>:3:17: note: insert an explicit cast to silence this issue 3 | atomic_flag x = ATOMIC_FLAG_INIT; | ^~~~~~~~~~~~~~~~ /opt/compiler-explorer/clang-trunk-20240703/lib/clang/19/include/stdatomic.h:169:28: note: expanded from macro 'ATOMIC_FLAG_INIT' 169 | #define ATOMIC_FLAG_INIT { 0 } | ^ 1 error generated. Compiler returned: 1 ``` https://github.com/llvm/llvm-project/pull/97534 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
