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/**
* -*- c++ -*-
*
* \file num_columns.hpp
*
* \brief The \c num_columns operation.
*
* Copyright (c) 2009, Marco Guazzone
*
* Distributed under the Boost Software License, Version 1.0. (See
* accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*
* \author Marco Guazzone, marco.guazzone@gmail.com
*/
#ifndef BOOST_NUMERIC_UBLAS_OPERATION_NUM_COLUMNS_HPP
#define BOOST_NUMERIC_UBLAS_OPERATION_NUM_COLUMNS_HPP
#include <boost/numeric/ublas/detail/config.hpp>
#include <boost/numeric/ublas/expression_types.hpp>
#include <boost/numeric/ublas/traits.hpp>
namespace boost { namespace numeric { namespace ublas {
/**
* \brief Return the number of columns.
* \tparam MatrixExprT A type which models the matrix expression concept.
* \param m A matrix expression.
* \return The number of columns.
*/
template <typename MatrixExprT>
BOOST_UBLAS_INLINE
typename matrix_traits<MatrixExprT>::size_type num_columns(matrix_expression<MatrixExprT> const& me)
{
return me().size2();
}
}}} // Namespace boost::numeric::ublas
#endif // BOOST_NUMERIC_UBLAS_OPERATION_NUM_COLUMNS_HPP
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