The BOOST_PP_LIST_TRANSFORM_D macro transforms each element in a list according to a supplied transformation. 
		It reenters BOOST_PP_WHILE with maximum efficiency.
	
	Usage
		
			BOOST_PP_LIST_TRANSFORM_D(d, op, data, list)
		
	Arguments
		
			- d
- 
				The next available BOOST_PP_WHILE iteration.
			
- op
- 
				A ternary predicate of the form op(d, data, elem). 
				This transformation is expanded by BOOST_PP_LIST_TRANSFORM for each element in list with the next available BOOST_PP_WHILE iteration,
				the auxiliary data, and the current element in list. 
			
- data
- 
				Auxiliary data passed to pred.
			
- list
- 
				The list to be transformed.
			
Remarks
		
			This macro expands 
op for each element in 
list. 
			It builds a new 
list out of the results of each call. 
			If, for example, 
list is (
a, (
b, (
c, 
BOOST_PP_NIL))),
			this macro expands to...
			
				(op(d, data, a), (op(d, data, b), (op(d, data, c), BOOST_PP_NIL)))
			
		See Also
		
	Requirements
		
	Sample Code
#include <boost/preprocessor/arithmetic/inc.hpp>
#include <boost/preprocessor/list/fold_right.hpp>
#include <boost/preprocessor/list/transform.hpp>
#define A (1, (2, (3, (4, BOOST_PP_NIL))))
#define B (A, (A, (A, (A, BOOST_PP_NIL))))
#define OP_T(d, data, x) BOOST_PP_INC(x)
#define OP(d, state, x) (BOOST_PP_LIST_TRANSFORM_D(d, OP_T, 2, x), state)
BOOST_PP_LIST_FOLD_RIGHT(OP, BOOST_PP_NIL, B)
/*
   expands to:
   ((2, (3, (4, (5, BOOST_PP_NIL)))), ((2, (3, (4, (5, BOOST_PP_NIL)))),
   ((2, (3, (4, (5, BOOST_PP_NIL)))), ((2, (3, (4, (5, BOOST_PP_NIL)))),
   BOOST_PP_NIL))))
*/