The BOOST_PP_LIST_TRANSFORM macro transforms each element in a list according to a supplied transformation.
	
	Usage
		
			BOOST_PP_LIST_TRANSFORM(op, data, list)
		
	Arguments
		
			- 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)))
			
		
			Previously, this macro could not be used inside BOOST_PP_WHILE. 
			There is no longer any such restriction. 
			It is more efficient, however, to use BOOST_PP_LIST_TRANSFORM_D in such a situation.
		
	See Also
		
	Requirements
		
	Sample Code
#include <boost/preprocessor/arithmetic/dec.hpp>
#include <boost/preprocessor/list/transform.hpp>
#define LIST (1, (3, (2, (5, BOOST_PP_NIL))))
#define OP(d, data, elem) BOOST_PP_DEC(elem)
BOOST_PP_LIST_TRANSFORM(OP, 3, LIST)
   // expands to (0, (2, (1, (4, BOOST_PP_NIL))))