https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88446
Bug ID: 88446
Summary: __builtin_is_constant_evaluated rejects some converted
constant expressions.
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: eric at efcs dot ca
Target Milestone: ---
__builtin_is_constant_evaluated() is not a constant expression when used in
array bounds or new expressions.
// g++ -fsyntax-only -std=c++2a
char CA[__builtin_is_constant_evaluated()]; // rejects-valid
auto CP = new char[3][__builtin_is_constant_evaluated()]; // rejects-valid
