The BOOST_PP_REPEAT_FROM_TO_D_z macro represents a fast horizontal repetition construct.  It reenters both BOOST_PP_REPEAT and BOOST_PP_WHILE with maximum efficiency.


BOOST_PP_REPEAT_FROM_TO_D_z(d, first, last, macro, data)


The next available BOOST_PP_REPEAT dimension.
The next available BOOST_PP_WHILE iteration.
The lower bound of the repetition.  Valid values range from 0 to BOOST_PP_LIMIT_MAG.
The upper bound of the repetition. Valid values range from 0 to BOOST_PP_LIMIT_MAG.
A ternary operation of the form macro(z, n, data).  This macro is expanded by BOOST_PP_REPEAT with the next available repetition depth, the current repetition number, and the auxiliary data argument. 
Auxiliary data passed to macro.


This macro expands to the sequence:
macro(z, first, data) macro(z, first + 1, data) ... macro(z, last - 1, data)
The number of repetitions (i.e. last - first) must not exceed BOOST_PP_LIMIT_REPEAT.
The z value that is passed to macro represents the next available repetition dimension.  Other macros that have _Z suffix variants internally use BOOST_PP_REPEAT--for example, BOOST_PP_ENUM_PARAMS and BOOST_PP_ENUM_PARAMS_Z.  Using these _Z versions is not strictly necessary, but passing the z value (that is passed to macro) to these macros allows them to reenter BOOST_PP_REPEAT with maximum efficiency.

See Also


Header:  <boost/preprocessor/repetition/repeat_from_to.hpp>

Copyright Housemarque Oy 2002
Copyright Paul Mensonides 2002

Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at