Hi,
I'm trying to make a macro chain that expands something like this
*A, B, C*
into something like this
*{"A", create<AFile>}, {"B", create<BFile>}, {"C", create<CFile>}*
This is what I have come up with
*#define FORMATS A, B, C // Add new formats here*
*#define SEQ_FORMATS BOOST_PP_VARIADIC_TO_SEQ(FORMATS)*
*#define ARG_PAIR(s, data, x) {#x, create}*
*#define SEQ_ARG_PAIRS BOOST_PP_SEQ_TRANSFORM(ARG_PAIR, ~, SEQ_FORMATS)*
*#define ARG_PAIRS BOOST_PP_SEQ_ENUM(SEQ_ARG_PAIRS)*
The SEQ_ARG_PAIRS macro does expand into
*({"A", create<AFile>}) ({"B", create<BFile>}) ({"C", create<CFile>})*
but ARG_PAIRS fails with the following error:
test.cpp:20:1: error: macro "BOOST_PP_SEQ_SIZE_0" passed 2 arguments, but
takes just 1
ARG_PAIRS
^
BOOST_PP_SEQ_ENUM_0 ({"B", create<BFile>}) ({"C", create<CFile>})
({"A", create<AFile>}) ({"B", create<BFile>}) ({"C", create<CFile>})
Any ideas?
thanks a lot
