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Re: PATCH to c-commonc.c, preliminary for PR/3865 fix
Zack Weinberg wrote:-
> I believe it would be more efficient to handle these macros in
> cppmacro.c:_cpp_builtin_macro_text, taking their values from a
> structure filled in by c-common.c and passed into cpplib. However,
> thinking about it a bit more, this is premature optimization; never
> mind.
Sometime in 3.4 I might improve this area a bit. e.g. it is probably
worth having a cpp_define_bool (macroname, on) which defines macroname
to be 1 or 0. We could avoid all the buffer pushing, lexing and popping
in this common case (>80%?)
Neil.