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| The <b>BOOST_PP_DEDUCE_Z</b> macro manually deduces the state of the <b>BOOST_PP_REPEAT</b> construct. |
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| <h4>Usage</h4> |
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| <b>BOOST_PP_DEDUCE_Z</b>() |
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| <h4>Remarks</h4> |
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| This macro is intended to avoid the use of <i>automatic-recursion</i> at deep expansion depths. |
| <i>Automatic-recursion</i> at such depths can be inefficient on some preprocessors. |
| It is not intended to be used directly with the invocation of macros with a <b>_Z</b> suffix such as: |
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| <b>BOOST_PP_ENUM_PARAMS_Z</b>(<b>BOOST_PP_DEDUCE_Z</b>(), (a, (b, (c, <b>BOOST_PP_NIL</b>)))) |
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| If it is used in this context, the <b>_Z</b> macro will fail. |
| The <b>_Z</b> macros directly concatenate to the <i>r</i> parameter that is passed to them, |
| which would prevent <b>BOOST_PP_DEDUCE_Z</b>() from expanding. |
| Furthermore, it is pointless to use this macro in a situation such as this |
| because it would already be too late to gain any efficiency. |
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| <h4>See Also</h4> |
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| <li><a href="repeat.html">BOOST_PP_REPEAT</a></li> |
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| <h4>Requirements</h4> |
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| <b>Header:</b> <a href="../headers/repetition/deduce_z.html"><boost/preprocessor/repetition/deduce_z.hpp></a> |
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| <i>© Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i> |
| </br><i>© Copyright Paul Mensonides 2002</i> |
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| <div style="margin-left: 0px;"> |
| <p><small>Distributed under the Boost Software License, Version 1.0. (See |
| accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or |
| 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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