C preprocessor vs Macro processor

Could someone please explain why a macro processor (e.g. M4)
is 1) more powerful than the C preprocessor and
2) more suitable for assembly languages


Does the C preprocessor hold any advantage over M4 ?


______________________________________________
Peter Govoni peter.govoni@analog.com
Analog Devices, Inc. (617) 461-3621
[This is about this fifth time this exact question has showed up this
month. Is it on a quiz or something? Answers: 1. m4 can do
conditional expansion inside macros, cpp can't. 2. It's not execpt
that people who write assembler macros usually want the most powerful
macro language they can find. III. It's somewhat better matched to C
syntax (understands C comments, for example), and it's essential if
you want to compile C programs. -John]


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