Você não pode selecionar mais de 25 tópicosOs tópicos devem começar com uma letra ou um número, podem incluir traços ('-') e podem ter até 35 caracteres.
According to cppreference, identifiers are `(XID_Start | '_')
XID_Continue*`, which is the case as of C++23 and C2x. I have confirmed
this myself with the drafts of C++23 and C2x.
https://en.cppreference.com/w/cpp/language/identifiers
Clang indeed implements identifiers as `(XID_Start | '_') XID_Continue*`
in C++ mode and C2x mode, with a slight extension to the character set
to include some extra math characters:
231992d9b8/clang/lib/Lex/Lexer.cpp (L1517-L1530)