print_vector.hpp

矩阵运算源码最新版本

// Software License for MTL
// 
// Copyright (c) 2007 The Trustees of Indiana University. All rights reserved.
// Authors: Peter Gottschling and Andrew Lumsdaine
// 
// This file is part of the Matrix Template Library
// 
// See also license.mtl.txt in the distribution.

#ifndef MTL_PRINT_VECTOR_INCLUDE
#define MTL_PRINT_VECTOR_INCLUDE

#include <iostream>
#include <boost/numeric/mtl/utility/is_row_major.hpp>
#include <boost/numeric/mtl/concept/collection.hpp>

namespace mtl {

template <typename Vector>
std::ostream& print_vector(Vector const& vector, std::ostream& out= std::cout, int width= 0, int precision= 0)
{
    out << '{' << size(vector) 
	<< (traits::is_row_major< typename OrientedCollection<Vector>::orientation >::value ? "R" : "C") 
	<< "}[" ;
    for (size_t r = 0; r < size(vector); ++r) {
	out.fill (' '); 
	if (width)
	    out.width (width); 
	// out.flags (std::ios_base::right);
	if (precision)
	    out.precision(precision); 
	out << vector[r] << (r < size(vector) - 1 ? "," : "]\n");
    }
    return out;
}

} // namespace mtl

#endif // MTL_PRINT_VECTOR_INCLUDE