* an STL container (as wrapper) for arrays of constant size.
*
* See
- * http://www.josuttis.com/cppcode
- * for details and the latest version.
+ * http://www.boost.org/libs/array/
+ * for documentation.
+ *
+ * The original author site is at: http://www.josuttis.com/
*
* (C) Copyright Nicolai M. Josuttis 2001.
- * Permission to copy, use, modify, sell and distribute this software
- * is granted provided this copyright notice appears in all copies.
- * This software is provided "as is" without express or implied
- * warranty, and with no claim as to its suitability for any purpose.
*
+ * 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)
+ *
+ * 29 Jan 2004 - c_array() added, BOOST_NO_PRIVATE_IN_AGGREGATE removed (Nico Josuttis)
* 23 Aug 2002 - fix for Non-MSVC compilers combined with MSVC libraries.
* 05 Aug 2001 - minor update (Nico Josuttis)
* 20 Jan 2001 - STLport fix (Beman Dawes)
* 29 Sep 2000 - Initial Revision (Nico Josuttis)
+ *
+ * Jan 29, 2004
*/
#ifndef BOOST_ARRAY_HPP
#define BOOST_ARRAY_HPP
+#include <boost/detail/workaround.hpp>
+
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+# pragma warning(push)
+# pragma warning(disable:4996) // 'std::equal': Function call with parameters that may be unsafe
+#endif
+
#include <cstddef>
#include <stdexcept>
+#include <boost/assert.hpp>
+#include <boost/swap.hpp>
// Handles broken standard libraries better than <iterator>
#include <boost/detail/iterator.hpp>
+#include <boost/throw_exception.hpp>
#include <algorithm>
// FIXES for broken compilers
#include <boost/config.hpp>
+
namespace boost {
template<class T, std::size_t N>
typedef const T& const_reference;
typedef std::size_t size_type;
typedef std::ptrdiff_t difference_type;
-
+
// iterator support
iterator begin() { return elems; }
const_iterator begin() const { return elems; }
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(BOOST_MSVC_STD_ITERATOR) && !defined(BOOST_NO_STD_ITERATOR_TRAITS)
typedef std::reverse_iterator<iterator> reverse_iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
-#elif (defined(BOOST_MSVC) && (BOOST_MSVC == 1300) || (defined(__ICL) && defined(_CPPLIB_VER) && (_CPPLIB_VER == 310))) && !defined(__SGI_STL_PORT) && !defined(_STLPORT_VERSION)
+#elif defined(_MSC_VER) && (_MSC_VER == 1300) && defined(BOOST_DINKUMWARE_STDLIB) && (BOOST_DINKUMWARE_STDLIB == 310)
// workaround for broken reverse_iterator in VC7
typedef std::reverse_iterator<std::_Ptrit<value_type, difference_type, iterator,
reference, iterator, reference> > reverse_iterator;
}
// operator[]
- reference operator[](size_type i) { return elems[i]; }
- const_reference operator[](size_type i) const { return elems[i]; }
+ reference operator[](size_type i)
+ {
+ BOOST_ASSERT( i < N && "out of range" );
+ return elems[i];
+ }
+
+ const_reference operator[](size_type i) const
+ {
+ BOOST_ASSERT( i < N && "out of range" );
+ return elems[i];
+ }
// at() with range check
reference at(size_type i) { rangecheck(i); return elems[i]; }
const_reference at(size_type i) const { rangecheck(i); return elems[i]; }
// front() and back()
- reference front() { return elems[0]; }
- const_reference front() const { return elems[0]; }
- reference back() { return elems[N-1]; }
- const_reference back() const { return elems[N-1]; }
+ reference front()
+ {
+ return elems[0];
+ }
+
+ const_reference front() const
+ {
+ return elems[0];
+ }
+
+ reference back()
+ {
+ return elems[N-1];
+ }
+
+ const_reference back() const
+ {
+ return elems[N-1];
+ }
// size is constant
static size_type size() { return N; }
// swap (note: linear complexity)
void swap (array<T,N>& y) {
- std::swap_ranges(begin(),end(),y.begin());
+ for (size_type i = 0; i < N; ++i)
+ boost::swap(elems[i],y.elems[i]);
}
- // direct access to data
+ // direct access to data (read-only)
const T* data() const { return elems; }
+ T* data() { return elems; }
+
+ // use array as C array (direct read/write access to data)
+ T* c_array() { return elems; }
// assignment with type conversion
template <typename T2>
std::fill_n(begin(),size(),value);
}
-#ifndef BOOST_NO_PRIVATE_IN_AGGREGATE
- private:
-#endif
// check range (may be private because it is static)
static void rangecheck (size_type i) {
- if (i >= size()) { throw std::range_error("array"); }
+ if (i >= size()) {
+ throw std::out_of_range("array<>: index out of range");
+ }
+ }
+
+ };
+
+#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+ template< class T >
+ class array< T, 0 > {
+
+ public:
+ // type definitions
+ typedef T value_type;
+ typedef T* iterator;
+ typedef const T* const_iterator;
+ typedef T& reference;
+ typedef const T& const_reference;
+ typedef std::size_t size_type;
+ typedef std::ptrdiff_t difference_type;
+
+ // iterator support
+ iterator begin() { return iterator( reinterpret_cast< T * >( this ) ); }
+ const_iterator begin() const { return const_iterator( reinterpret_cast< const T * >( this ) ); }
+ iterator end() { return begin(); }
+ const_iterator end() const { return begin(); }
+
+ // reverse iterator support
+#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(BOOST_MSVC_STD_ITERATOR) && !defined(BOOST_NO_STD_ITERATOR_TRAITS)
+ typedef std::reverse_iterator<iterator> reverse_iterator;
+ typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
+#elif defined(_MSC_VER) && (_MSC_VER == 1300) && defined(BOOST_DINKUMWARE_STDLIB) && (BOOST_DINKUMWARE_STDLIB == 310)
+ // workaround for broken reverse_iterator in VC7
+ typedef std::reverse_iterator<std::_Ptrit<value_type, difference_type, iterator,
+ reference, iterator, reference> > reverse_iterator;
+ typedef std::reverse_iterator<std::_Ptrit<value_type, difference_type, const_iterator,
+ const_reference, iterator, reference> > const_reverse_iterator;
+#else
+ // workaround for broken reverse_iterator implementations
+ typedef std::reverse_iterator<iterator,T> reverse_iterator;
+ typedef std::reverse_iterator<const_iterator,T> const_reverse_iterator;
+#endif
+
+ reverse_iterator rbegin() { return reverse_iterator(end()); }
+ const_reverse_iterator rbegin() const {
+ return const_reverse_iterator(end());
+ }
+ reverse_iterator rend() { return reverse_iterator(begin()); }
+ const_reverse_iterator rend() const {
+ return const_reverse_iterator(begin());
+ }
+
+ // operator[]
+ reference operator[](size_type /*i*/)
+ {
+ return failed_rangecheck();
}
+ const_reference operator[](size_type /*i*/) const
+ {
+ return failed_rangecheck();
+ }
+
+ // at() with range check
+ reference at(size_type /*i*/) { return failed_rangecheck(); }
+ const_reference at(size_type /*i*/) const { return failed_rangecheck(); }
+
+ // front() and back()
+ reference front()
+ {
+ return failed_rangecheck();
+ }
+
+ const_reference front() const
+ {
+ return failed_rangecheck();
+ }
+
+ reference back()
+ {
+ return failed_rangecheck();
+ }
+
+ const_reference back() const
+ {
+ return failed_rangecheck();
+ }
+
+ // size is constant
+ static size_type size() { return 0; }
+ static bool empty() { return true; }
+ static size_type max_size() { return 0; }
+ enum { static_size = 0 };
+
+ void swap (array<T,0>& /*y*/) {
+ }
+
+ // direct access to data (read-only)
+ const T* data() const { return 0; }
+ T* data() { return 0; }
+
+ // use array as C array (direct read/write access to data)
+ T* c_array() { return 0; }
+
+ // assignment with type conversion
+ template <typename T2>
+ array<T,0>& operator= (const array<T2,0>& ) {
+ return *this;
+ }
+
+ // assign one value to all elements
+ void assign (const T& ) { }
+
+ // check range (may be private because it is static)
+ static reference failed_rangecheck () {
+ std::out_of_range e("attempt to access element of an empty array");
+ boost::throw_exception(e);
+ //
+ // We need to return something here to keep
+ // some compilers happy: however we will never
+ // actually get here....
+ //
+ static T placeholder;
+ return placeholder;
+ }
};
+#endif
// comparisons
template<class T, std::size_t N>
} /* namespace boost */
-#endif /*BOOST_ARRAY_HPP*/
-
-
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+# pragma warning(pop)
+#endif
+#endif /*BOOST_ARRAY_HPP*/
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