BOOST_PP_ENUM_TRAILING_z

Boost , ,

Usage

Arguments

z

The next available BOOST_PP_REPEAT dimension.

count

The number of repetitious calls to macro.  Valid values range from 0 to BOOST_PP_LIMIT_REPEAT.

macro

A ternary operation of the form macro(z, n, data).  This macro is expanded by BOOST_PP_ENUM with the next available repetition depth, the current repetition number, and the auxiliary data argument. 

data

Auxiliary data passed to macro.

Remarks

See Also

• BOOST_PP_CAT
• BOOST_PP_ENUM_TRAILING
• BOOST_PP_LIMIT_REPEAT

Requirements

Sample Code

#include <boost/preprocessor/repetition/enum.hpp>
#include <boost/preprocessor/repetition/enum_trailing.hpp>
#define TEXT(z, n, text) text
#define TTP(z, n, _) \
   template< \
      class BOOST_PP_ENUM_TRAILING_ ## z(n, TEXT, class) \
   > \
   class T ## n \
   /**/
BOOST_PP_ENUM(3, TTP, nil)
   /*
      expands to...
      template<class> class T0,
      template<class, class> class T1,
      template<class, class, class> class T2
   */

Статья BOOST_PP_ENUM_TRAILING_z раздела может быть полезна для разработчиков на c++ и boost.

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