Synopsis

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

Description

BOOST_MPL_LIMIT_STRING_SIZE is an overridable configuration macro regulating the maximum arity of the string's variadic forms. In this implementation of the library, BOOST_MPL_LIMIT_STRING_SIZE has a default value of 32. To override the default limit, define BOOST_MPL_LIMIT_STRING_SIZE to the desired maximum arity before including any library header.

Example

#define BOOST_MPL_LIMIT_STRING_SIZE 8
#include <boost/mpl/string.hpp>

using namespace boost::mpl;

typedef string<'a'> s_1;
typedef string<'abcd','efgh'> s_8;
// typedef string<'abcd','efgh','i'> s_9; // error!

See also

Configuration, BOOST_MPL_LIMIT_VECTOR_SIZE