Why are C macros not type-safe?

Question

If have encountered this claim multiple times and can\'t figure out what it is supposed to mean. Since the resulting code is compiled using a regular C compiler it will end up b

Answer 1

Macros aren't type safe, because they were never meant to be type safe.

The compiler does the type checking after macros had been expanded.

Macros and there expansion are meant as a helper to the ("lazy") author (in the sense of writer/reader) of C source code. That's all.