6. ref
  7. BOOST_PP_ARRAY_PUSH_FRONT

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BOOST_PP_ARRAY_PUSH_FRONT

The BOOST_PP_ARRAY_PUSH_FRONT macro appends an element to the beginning of an array.

Usage

BOOST_PP_ARRAY_PUSH_FRONT(array, elem)

Arguments

  • array : The array to append an element to.

  • elem : The element to append.

Requirements

Header: <boost/preprocessor/array/push_front.hpp>

Sample Code

#include <boost/preprocessor/array/push_front.hpp>

# define ARRAY (3, (b, c, d))

BOOST_PP_ARRAY_PUSH_FRONT(ARRAY, a) // expands to (4, (a, b, c, d))