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Add support for std::get<> to Boost.Array

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[SVN r82083]
This commit is contained in:
Marshall Clow
2012-12-18 17:59:08 +00:00
parent f41b1d2d4c
commit daeb19f693
3 changed files with 72 additions and 0 deletions
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17
include/boost/array.hpp
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@ -42,6 +42,7 @@
#include <cstddef>
#include <stdexcept>
#include <boost/assert.hpp>
#include <boost/static_assert.hpp>
#include <boost/swap.hpp>
// Handles broken standard libraries better than <iterator>
@ -438,6 +439,22 @@ namespace boost {
} /* namespace boost */
#ifndef BOOST_NO_CXX11_HDR_ARRAY
// If we don't have std::array, I'm assuming that we don't have std::get
namespace std {
template <size_t Idx, typename T, size_t N>
T &get(boost::array<T,N> &arr) BOOST_NOEXCEPT {
BOOST_STATIC_ASSERT_MSG ( Idx < N, "std::get<>(boost::array &) index out of range" );
return arr[Idx];
}
template <size_t Idx, typename T, size_t N>
const T &get(const boost::array<T,N> &arr) BOOST_NOEXCEPT {
BOOST_STATIC_ASSERT_MSG ( Idx < N, "std::get<>(const boost::array &) index out of range" );
return arr[Idx];
}
}
#endif
#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
# pragma warning(pop)