Hi all,
I'm observing an interesting problem on MSVC71 regarding the use of
__LINE__ with Boost.Preprocessor.
The code looks like this
==== snip ====
#include
#define UNIQUE_ID BOOST_PP_CAT(id, __LINE__)
#define UNIQUE_ID2 BOOST_PP_CAT(id, _MSC_VER)
int main()
{
int UNIQUE_ID2 = 321;
int UNIQUE_ID = 123;
bool UNIQUE_ID = false;
}
==== snip ====
The compiler works fine with UNIQUE_ID2, but not UNIQUE_ID. The only
different in them is only the use of __LINE__ instead of _MSC_VER.
Does anyone on the list has more insight on this issue?
Or, what're the common ways to generate an unique identifier
automatically within certain scope?
Cheers,
Freddie
--
Wu Yinghui, Freddie
Research & Development
Software Engineer
Volume Interactions Pte Ltd
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