mirror of https://github.com/CGAL/cgal
59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
// ============================================================================
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//
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// Copyright (c) 1997, 1998, 1999 The CGAL Consortium
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//
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// This software and related documentation is part of an INTERNAL release
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// of the Computational Geometry Algorithms Library (CGAL). It is not
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// intended for general use.
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//
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// ----------------------------------------------------------------------------
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//
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// release : $CGAL_Revision: $
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// release_date : $CGAL_Date: $
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//
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// file : copy_n.h
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// chapter : $CGAL_Chapter: STL Extensions for CGAL $
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// package : $CGAL_Package: STL_Extension $
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// source : stl_extension.fw
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// revision : $Revision$
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// revision_date : $Date$
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// author(s) : Michael Hoffmann <hoffmann@inf.ethz.ch>
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// Lutz Kettner <kettner@inf.ethz.ch>
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//
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// coordinator : INRIA, Sophia Antipolis
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//
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// STL like copy that copies n elements
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// ============================================================================
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// This file is obsolete and exists only for backwards-compatibility.
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// Include <CGAL/algorithm.h> instead.
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#ifndef CGAL_COPY_N_H
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#define CGAL_COPY_N_H 1
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#include <cstddef>
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// copy_n is usually in the STL as well, but not in the official
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// standard. We provide out own copy_n. Only on Gnu g++ 2.8.1
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// the hack to work with namespaces gives a name clash, which
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// we avoid using the follwing workaround.
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#ifndef CGAL_CFG_NO_NAMESPACE
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CGAL_BEGIN_NAMESPACE
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template <class InputIterator, class Size, class OutputIterator>
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OutputIterator copy_n( InputIterator first,
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Size n,
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OutputIterator result) {
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// copies the first `n' items from `first' to `result'. Returns
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// the value of `result' after inserting the `n' items.
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while( n--) {
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*result = *first;
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first++;
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result++;
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}
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return result;
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}
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CGAL_END_NAMESPACE
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#endif // CGAL_CFG_NO_NAMESPACE //
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#endif // CGAL_COPY_N_H //
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// EOF //
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