Subject: Re: [Boost-users] Preprocessor Question
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2009-11-16 12:55:03
AMDG
Hartmut Kaiser wrote:
>> Thanks for the solution,
>>
>> but it was actually failing in getting number of arguments to the
>> macro.
>>
>> warning C4003: not enough actual parameters for macro 'PP_ARG_N'
>>
>> so PP_NARG evaluates to nothing and subsequently everything fails.
>>
>
> Please note that the VC preprocessor does not support variadic macros, which makes the valid implementation of PP_NARG() fail.
>
I can compile
void f(int, int) {}
#define test(...) __VA_ARGS__
int main() {
f(test(57, 21));
}
with msvc 9.0.
In Christ,
Steven Watanabe