macro parameter pack with boost preprocessor

I don't know there similar question, or not.

How to simplify

(a == 78 || a == 98 || a == 73 || a == 11 || a == 90 || a==103 || a==45 )

expression to

MY_CHECK(a, (78, 98, 73, 11, 90, 103, 45) )

With boost preprocessor ??
Is there any ready solution in boost preprocessor.

Solution

I couldn't find better than a transform followed by a fold, since BOOST_PP_SEQ_FOLD_LEFT does not carry a data parameter around. Still:

#define MY_CHECK_FOLD_OR(s, a, b) a || b
#define MY_CHECK_FOLD_EQ(s, var, elem) (var) == (elem)

#define MY_CHECK(var, values)             \
    (BOOST_PP_SEQ_FOLD_LEFT(              \
        MY_CHECK_FOLD_OR, false,          \
        BOOST_PP_SEQ_TRANSFORM(           \
            MY_CHECK_FOLD_EQ, var,        \
            BOOST_PP_TUPLE_TO_SEQ(values) \
        )                                 \
    ))

... which expands:

if (MY_CHECK(a, (1, 2, 3)))

... into:

if ((false || (a) == (1) || (a) == (2) || (a) == (3)))

See it live on Coliru