BOOST_PP_DEDUCE_R

The BOOST_PP_DEDUCE_R macro manually deduces the state of the BOOST_PP_FOR construct.

This macro is intended to avoid the use of automatic-recursion at deep expansion depths.  Automatic-recursion at such depths can be inefficient on some preprocessors.  It is not intended to be used directly with the invocation of macros with a _R suffix such as: If it is used in this context, the _R macro will fail.  The _R macros directly concatenate to the r parameter that is passed to them, which would prevent BOOST_PP_DEDUCE_R() 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.

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

© Copyright Housemarque Oy 2002
© Copyright Paul Mensonides 2002

Распространяется в соответствии с Лицензией на программное обеспечение Boost версии 1.0. (См. сопроводительный файл LICENSE_1_0.txt или копию по адресу www.boost.org/LICENSE_1_0.txt)