limit_unrolling.rst

C++的一个好库。。。现在很流行

.. Macros/Configuration//BOOST_MPL_LIMIT_UNROLLING |70

BOOST_MPL_LIMIT_UNROLLING
=========================

Synopsis
--------

.. parsed-literal::

    #if !defined(BOOST_MPL_LIMIT_UNROLLING)
    #   define BOOST_MPL_LIMIT_UNROLLING \\
            |idic| \\
    /\*\*/
    #endif


Description
-----------

``BOOST_MPL_LIMIT_UNROLLING`` is an overridable configuration macro regulating
the unrolling depth of the library's iteration algorithms. In this implementation 
of the library, ``BOOST_MPL_LIMIT_UNROLLING`` has a default value of 4. To 
override the default, define ``BOOST_MPL_LIMIT_UNROLLING`` to the desired 
value before including any library header. 
|preprocessed headers disclaimer|


Example
-------

Except for overall library performace, overriding the 
``BOOST_MPL_LIMIT_UNROLLING``\ 's default value has no user-observable effects.

See also
--------

|Configuration|, |BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS|