#include <boost/preprocessor/tuple/elem.hpp>

#define BOOST_PP_TUPLE_ELEM(N,I,T)

Expands to the I:th element of an N-tuple.

For example,

  BOOST_PP_TUPLE_ELEM(2,1,(A,B))

expands to B.

Tuples can be used for representing structured data.

Examples of tuples:

  2-tuple: (A, B)
  3-tuple: (1, 2, 3)
  4-tuple: (A B C, D, EF, 34)

See

• BOOST_PP_LIMIT_TUPLE

#define BOOST_PREPROCESSOR_TUPLE_ELEM(N,I,T)

Obsolete. Use BOOST_PP_TUPLE_ELEM().

Revised

© Copyright Housemarque Oy 2002

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