Implementation of string literal concatenation in C and C++

Question

AFAIK, this question applies equally to C and C++

Step 6 of the \"translation phases\" specified in the C standard (5.1.1.

Answer 1

I would handle it in the scanning token part of the parser, so in the compiler. It seems more logical. The preprocessor has not to know the "structure" of the language, and in fact it ignores it usually so that macros can generate uncompilable code. It handles nothing more than what it is entitled to handle by directives that are specifically addressed to it (# ...), and the "consequences" of them (like those of a #define x h, which would make the preprocessor change a lot of x into h)