BOOST_MPL_LIMIT_VECTOR_SIZE

Synopsis

#if !defined(BOOST_MPL_LIMIT_VECTOR_SIZE)
#   define BOOST_MPL_LIMIT_VECTOR_SIZE \
        implementation-defined integral constant \
/**/
#endif

Description

BOOST_MPL_LIMIT_VECTOR_SIZE is an overridable configuration macro regulating the maximum arity of the vector's and vector_c's variadic forms. In this implementation of the library, BOOST_MPL_LIMIT_VECTOR_SIZE has a default value of 20. To override the default limit, define BOOST_MPL_LIMIT_VECTOR_SIZE to the desired maximum arity rounded up to the nearest multiple of ten before including any library header. [Note: Overriding will take effect only if the library is configured not to use preprocessed headers. See BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS for more information. — end note]

Example

#define BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
#define BOOST_MPL_LIMIT_VECTOR_SIZE 10
#include <boost/mpl/vector.hpp>

using namespace boost::mpl;

typedef vector_c<int,1> v_1;
typedef vector_c<int,1,2,3,4,5,6,7,8,9,10> v_10;
// typedef vector_c<int,1,2,3,4,5,6,7,8,9,10,11> v_11; // error!

See also

Configuration, BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS, BOOST_MPL_LIMIT_LIST_SIZE