c++ - ## を含むマクロを何と呼びますか?

Question

たとえば、

#define (name) ##name

##name の用語は何ですか?

ありがとう！

Answer 1

Concat operator i believe. Also called token pasting or token concatenation operator. The ## preprocessing operator performs token pasting. When a macro is expanded, the two tokens on either side of each ## operator are combined into a single token, which then replaces the ## and the two original tokens in the macro expansion. Usually both will be identifiers, or one will be an identifier and the other a preprocessing number. When pasted, they make a longer identifier.

See here - ## Operator (Macro Concatenation)