I agree. Dlang already has scope guards (Appendix C in the OP) https://dlang.org/spec/statement.html#scope-guard-statement https://dlang.org/spec/statement.htm

I agree. Dlang already has scope guards (Appendix C in the OP) https://dlang.org/spec/statement.html#scope-guard-statement https://dlang.org/spec/statement.html#scope-guard-statement, and does so at block scope. For some code it's a more elegant solution (keeps acquire and release code close together), without introducing the usual C++ RAII issues.