boost/libs/mpl/doc/src/refmanual/LIMIT_VECTOR_SIZE.rst

   1 .. Macros/Configuration//BOOST_MPL_LIMIT_VECTOR_SIZE |30
   2
   3 BOOST_MPL_LIMIT_VECTOR_SIZE
   4 ===========================
   5
   6 Synopsis
   7 --------
   8
   9 .. parsed-literal::
  10
  11     #if !defined(BOOST_MPL_LIMIT_VECTOR_SIZE)
  12     #   define BOOST_MPL_LIMIT_VECTOR_SIZE \\
  13             |idic| \\
  14     /\*\*/
  15     #endif
  16
  17
  18 Description
  19 -----------
  20
  21 ``BOOST_MPL_LIMIT_VECTOR_SIZE`` is an overridable configuration macro regulating
  22 the maximum arity of the ``vector``\ 's and ``vector_c``\ 's |variadic forms|. In this
  23 implementation of the library, ``BOOST_MPL_LIMIT_VECTOR_SIZE`` has a default value
  24 of 20. To override the default limit, define ``BOOST_MPL_LIMIT_VECTOR_SIZE`` to
  25 the desired maximum arity rounded up to the nearest multiple of ten before
  26 including any library header. |preprocessed headers disclaimer|
  27
  28
  29 Example
  30 -------
  31
  32 .. parsed-literal::
  33
  34     #define BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
  35     #define BOOST_MPL_LIMIT_VECTOR_SIZE 10
  36     ``#``\ include <boost/mpl/vector.hpp>
  37
  38     using namespace boost::mpl;
  39
  40     typedef vector_c<int,1> v_1;
  41     typedef vector_c<int,1,2,3,4,5,6,7,8,9,10> v_10;
  42     // typedef vector_c<int,1,2,3,4,5,6,7,8,9,10,11> v_11; // error!
  43
  44
  45 See also
  46 --------
  47
  48 |Configuration|, |BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS|, |BOOST_MPL_LIMIT_LIST_SIZE|
  49