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The < b > BOOST_PP_REPEAT_FROM_TO_D</ b > macro represents a fast horizontal repetition construct.
It reenters < b > BOOST_PP_WHILE</ b > with maximum efficiency.
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< h4 > Usage</ h4 >
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< b > BOOST_PP_REPEAT_FROM_TO_D</ b > (< i > d</ i > , < i > first</ i > , < i > last</ i > , < i > macro</ i > , < i > data</ i > )
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< h4 > Arguments</ h4 >
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< dt > d</ dt >
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The next available < b > BOOST_PP_WHILE</ b > iteration.
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< dt > first</ dt >
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The lower bound of the repetition.
Valid values range from < i > 0</ i > to < b > BOOST_PP_LIMIT_MAG</ b > .
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< dt > last</ dt >
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The upper bound of the repetition.
Valid values range from < i > 0</ i > to < b > BOOST_PP_LIMIT_MAG</ b > .
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< dt > macro</ dt >
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A ternary operation of the form < i > macro</ i > (< i > z</ i > , < i > n</ i > , < i > data</ i > ).
This macro is expanded by < b > BOOST_PP_REPEAT</ b > with the next available repetition depth,
the current repetition number, and the auxiliary < i > data</ i > argument.
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< dt > data</ dt >
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Auxiliary data passed to < i > macro</ i > .
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< h4 > Remarks</ h4 >
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This macro expands to the sequence:
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< i > macro</ i > (< i > z</ i > , < i > first</ i > , < i > data</ i > ) < i > macro</ i > (< i > z</ i > , < i > first</ i > + < i > 1</ i > , < i > data</ i > ) ... < i > macro</ i > (< i > z</ i > , < i > last</ i > - < i > 1</ i > , < i > data</ i > )
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The number of repetitions (i.e. < i > last</ i > - < i > first</ i > ) must not exceed < b > BOOST_PP_LIMIT_REPEAT</ b > .
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The < i > z</ i > value that is passed to < i > macro</ i > represents the next available repetition dimension.
Other macros that have < b > _Z</ b > suffix variants internally use < b > BOOST_PP_REPEAT</ b > --for example, < b > BOOST_PP_ENUM_PARAMS</ b > and < b > BOOST_PP_ENUM_PARAMS_Z</ b > .
Using these < b > _Z</ b > versions is not strictly necessary, but passing the < i > z</ i > value (that is passed to < i > macro</ i > ) to these macros allows them to reenter < b > BOOST_PP_REPEAT</ b > with maximum efficiency.
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To directly use this < i > z</ i > value, rather than simply passing it to another macro, see < b > BOOST_PP_REPEAT_FROM_TO_D_< i > z</ i ></ b > .
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< h4 > See Also</ h4 >
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< li >< a href = "limit_mag.html" > BOOST_PP_LIMIT_MAG</ a ></ li >
< li >< a href = "limit_repeat.html" > BOOST_PP_LIMIT_REPEAT</ a ></ li >
< li >< a href = "repeat_from_to.html" > BOOST_PP_REPEAT_FROM_TO</ a ></ li >
< li >< a href = "repeat_from_to_d_z.html" > BOOST_PP_REPEAT_FROM_TO_D_< i > z</ i ></ a ></ li >
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< h4 > Requirements</ h4 >
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< b > Header:</ b > < a href = "../headers/repetition/repeat_from_to.html" > < boost/preprocessor/repetition/repeat_from_to.hpp> </ a >
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< i > © Copyright < a href = "http://www.housemarque.com" target = "_top" > Housemarque Oy</ a > 2002</ i >
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</ br >< i > © Copyright Paul Mensonides 2002</ i >
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< p >< small > Distributed under the Boost Software License, Version 1.0. (See
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accompanying file < a href = "../../../../LICENSE_1_0.txt" > LICENSE_1_0.txt</ a > or
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copy at < a href =
"http://www.boost.org/LICENSE_1_0.txt" > www.boost.org/LICENSE_1_0.txt</ a > )</ small ></ p >
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