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freebsd-skq/contrib/libc++/include/array
dim 6a450d4056 Update libc++ to 3.8.0. Excerpted list of fixes (with upstream revision 
numbers):

r242679 Implement the plugin-based version of std::search. There are no
        searchers yet; those are coming soon.
r242682 Implement the default searcher for std::experimental::search.
r243728 Add <experimental/any> v2.
r245330 implement more of N4258 - Cleaning up noexcept in the standard
        library. Specifically add new noexcept stuff to vector and
	string's move-assignment operations
r245334 Fix PR22606 - Leak pthread_key with static storage duration to
        ensure all of thread-local destructors are called.
r245335 Fix PR23589: std::function doesn't recognize null pointer to
        varargs function.
r247036 Implementation of Boyer-Moore and Boyer-Moore-Horspool
        searchers for the LFTS.
r249325 Implement LWG#2063, and update the issues links to point to the
        github generated pages
r249738 Split <ctype.h> out of <cctype>.
r249739 Split <errno.h> out of <cerrno>.
r249740 Split <float.h> out of <cfloat>.
r249741 Split <inttypes.h> out of <cinttypes>.
r249742 Split <math.h> out of <cmath>.
r249743 Split <setjmp.h> out of <csetjmp>.
r249761 Split <stddef.h> out of <cstddef>.
r249798 Split <stdio.h> out of <cstdio>.
r249800 Split <stdlib.h> out of <cstdlib>.
r249889 Split <wchar.h> out of <cwchar>.
r249890 Split <wctype.h> out of <cwctype>.
r249929 Split <string.h> out of <cstring>.
r250254 ABI versioning macros for libc++.
r251246 Fix LWG#2244: basic_istream::seekg
r251247 Fix LWG#2127: Move-construction with raw_storage_iterator.
r251253 Fix LWG#2476: scoped_allocator_adaptor is not assignable
r251257 Fix LWG#2489: mem_fn() should be noexcept
r251618 Implement P0004R1 'Remove Deprecated iostreams aliases'
r251766 Implement the first part of P0006R0: Adopt Type Traits Variable
        Templates for C++17.
r252195 Implement P0092R1 for C++1z
r252350 Allow deque to handle incomplete types.
r252406 More of P0006R0: type traits variable aliases for C++17.
r252407 Implement LWG#2353: std::next is over-constrained
r252905 Implement P0074: Making owner_less more flexible
r253215 Implement P0013R1: Logical Operator Type Traits.
r253274 Implement P0007: Constant View: A proposal for a std::as_const
        helper function template.
r254119 Add static_assert to set/multiset/map/multimap/forward_list/deque
        that the allocator's value_type match the container's value_type.
r254283 Implement more of P0006; Type Traits Variable Templates.
r255941 LWG2485: get() should be overloaded for const tuple&&.
r256325 Fix LWG Issue #2367 - Fixing std::tuple and std::pair's default
        constructors.
r256652 Fix for ALL undefined behavior in <list>.
r256859 First half of LWG#2354: 'Unnecessary copying when inserting
        into maps with braced-init syntax'

Exp-run:	antoine
Relnotes:	yes
2016-05-26 18:52:49 +00:00

342 lines
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// -*- C++ -*-
//===---------------------------- array -----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_ARRAY
#define _LIBCPP_ARRAY
/*
array synopsis
namespace std
{
template <class T, size_t N >
struct array
{
// types:
typedef T & reference;
typedef const T & const_reference;
typedef implementation defined iterator;
typedef implementation defined const_iterator;
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef T value_type;
typedef T* pointer;
typedef const T* const_pointer;
typedef std::reverse_iterator<iterator> reverse_iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
// No explicit construct/copy/destroy for aggregate type
void fill(const T& u);
void swap(array& a) noexcept(noexcept(swap(declval<T&>(), declval<T&>())));
// iterators:
iterator begin() noexcept;
const_iterator begin() const noexcept;
iterator end() noexcept;
const_iterator end() const noexcept;
reverse_iterator rbegin() noexcept;
const_reverse_iterator rbegin() const noexcept;
reverse_iterator rend() noexcept;
const_reverse_iterator rend() const noexcept;
const_iterator cbegin() const noexcept;
const_iterator cend() const noexcept;
const_reverse_iterator crbegin() const noexcept;
const_reverse_iterator crend() const noexcept;
// capacity:
constexpr size_type size() const noexcept;
constexpr size_type max_size() const noexcept;
constexpr bool empty() const noexcept;
// element access:
reference operator[](size_type n);
const_reference operator[](size_type n) const; // constexpr in C++14
const_reference at(size_type n) const; // constexpr in C++14
reference at(size_type n);
reference front();
const_reference front() const; // constexpr in C++14
reference back();
const_reference back() const; // constexpr in C++14
T* data() noexcept;
const T* data() const noexcept;
};
template <class T, size_t N>
bool operator==(const array<T,N>& x, const array<T,N>& y);
template <class T, size_t N>
bool operator!=(const array<T,N>& x, const array<T,N>& y);
template <class T, size_t N>
bool operator<(const array<T,N>& x, const array<T,N>& y);
template <class T, size_t N>
bool operator>(const array<T,N>& x, const array<T,N>& y);
template <class T, size_t N>
bool operator<=(const array<T,N>& x, const array<T,N>& y);
template <class T, size_t N>
bool operator>=(const array<T,N>& x, const array<T,N>& y);
template <class T, size_t N >
void swap(array<T,N>& x, array<T,N>& y) noexcept(noexcept(x.swap(y)));
template <class T> class tuple_size;
template <size_t I, class T> class tuple_element;
template <class T, size_t N> struct tuple_size<array<T, N>>;
template <size_t I, class T, size_t N> struct tuple_element<I, array<T, N>>;
template <size_t I, class T, size_t N> T& get(array<T, N>&) noexcept; // constexpr in C++14
template <size_t I, class T, size_t N> const T& get(const array<T, N>&) noexcept; // constexpr in C++14
template <size_t I, class T, size_t N> T&& get(array<T, N>&&) noexcept; // constexpr in C++14
template <size_t I, class T, size_t N> const T&& get(const array<T, N>&&) noexcept; // constexpr in C++14
} // std
*/
#include <__config>
#include <__tuple>
#include <type_traits>
#include <utility>
#include <iterator>
#include <algorithm>
#include <stdexcept>
#if defined(_LIBCPP_NO_EXCEPTIONS)
#include <cassert>
#endif
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _Tp, size_t _Size>
struct _LIBCPP_TYPE_VIS_ONLY array
{
// types:
typedef array __self;
typedef _Tp value_type;
typedef value_type& reference;
typedef const value_type& const_reference;
typedef value_type* iterator;
typedef const value_type* const_iterator;
typedef value_type* pointer;
typedef const value_type* const_pointer;
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef std::reverse_iterator<iterator> reverse_iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
value_type __elems_[_Size > 0 ? _Size : 1];
// No explicit construct/copy/destroy for aggregate type
_LIBCPP_INLINE_VISIBILITY void fill(const value_type& __u)
{_VSTD::fill_n(__elems_, _Size, __u);}
_LIBCPP_INLINE_VISIBILITY
void swap(array& __a) _NOEXCEPT_(__is_nothrow_swappable<_Tp>::value)
{_VSTD::swap_ranges(__elems_, __elems_ + _Size, __a.__elems_);}
// iterators:
_LIBCPP_INLINE_VISIBILITY
iterator begin() _NOEXCEPT {return iterator(__elems_);}
_LIBCPP_INLINE_VISIBILITY
const_iterator begin() const _NOEXCEPT {return const_iterator(__elems_);}
_LIBCPP_INLINE_VISIBILITY
iterator end() _NOEXCEPT {return iterator(__elems_ + _Size);}
_LIBCPP_INLINE_VISIBILITY
const_iterator end() const _NOEXCEPT {return const_iterator(__elems_ + _Size);}
_LIBCPP_INLINE_VISIBILITY
reverse_iterator rbegin() _NOEXCEPT {return reverse_iterator(end());}
_LIBCPP_INLINE_VISIBILITY
const_reverse_iterator rbegin() const _NOEXCEPT {return const_reverse_iterator(end());}
_LIBCPP_INLINE_VISIBILITY
reverse_iterator rend() _NOEXCEPT {return reverse_iterator(begin());}
_LIBCPP_INLINE_VISIBILITY
const_reverse_iterator rend() const _NOEXCEPT {return const_reverse_iterator(begin());}
_LIBCPP_INLINE_VISIBILITY
const_iterator cbegin() const _NOEXCEPT {return begin();}
_LIBCPP_INLINE_VISIBILITY
const_iterator cend() const _NOEXCEPT {return end();}
_LIBCPP_INLINE_VISIBILITY
const_reverse_iterator crbegin() const _NOEXCEPT {return rbegin();}
_LIBCPP_INLINE_VISIBILITY
const_reverse_iterator crend() const _NOEXCEPT {return rend();}
// capacity:
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR size_type size() const _NOEXCEPT {return _Size;}
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR size_type max_size() const _NOEXCEPT {return _Size;}
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR bool empty() const _NOEXCEPT {return _Size == 0;}
// element access:
_LIBCPP_INLINE_VISIBILITY reference operator[](size_type __n) {return __elems_[__n];}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 const_reference operator[](size_type __n) const {return __elems_[__n];}
reference at(size_type __n);
_LIBCPP_CONSTEXPR_AFTER_CXX11 const_reference at(size_type __n) const;
_LIBCPP_INLINE_VISIBILITY reference front() {return __elems_[0];}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 const_reference front() const {return __elems_[0];}
_LIBCPP_INLINE_VISIBILITY reference back() {return __elems_[_Size > 0 ? _Size-1 : 0];}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 const_reference back() const {return __elems_[_Size > 0 ? _Size-1 : 0];}
_LIBCPP_INLINE_VISIBILITY
value_type* data() _NOEXCEPT {return __elems_;}
_LIBCPP_INLINE_VISIBILITY
const value_type* data() const _NOEXCEPT {return __elems_;}
};
template <class _Tp, size_t _Size>
typename array<_Tp, _Size>::reference
array<_Tp, _Size>::at(size_type __n)
{
if (__n >= _Size)
#ifndef _LIBCPP_NO_EXCEPTIONS
throw out_of_range("array::at");
#else
assert(!"array::at out_of_range");
#endif
return __elems_[__n];
}
template <class _Tp, size_t _Size>
_LIBCPP_CONSTEXPR_AFTER_CXX11
typename array<_Tp, _Size>::const_reference
array<_Tp, _Size>::at(size_type __n) const
{
if (__n >= _Size)
#ifndef _LIBCPP_NO_EXCEPTIONS
throw out_of_range("array::at");
#else
assert(!"array::at out_of_range");
#endif
return __elems_[__n];
}
template <class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
{
return _VSTD::equal(__x.__elems_, __x.__elems_ + _Size, __y.__elems_);
}
template <class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
{
return !(__x == __y);
}
template <class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
{
return _VSTD::lexicographical_compare(__x.__elems_, __x.__elems_ + _Size, __y.__elems_, __y.__elems_ + _Size);
}
template <class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
{
return __y < __x;
}
template <class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
{
return !(__y < __x);
}
template <class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
{
return !(__x < __y);
}
template <class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if
<
__is_swappable<_Tp>::value,
void
>::type
swap(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
_NOEXCEPT_(__is_nothrow_swappable<_Tp>::value)
{
__x.swap(__y);
}
template <class _Tp, size_t _Size>
class _LIBCPP_TYPE_VIS_ONLY tuple_size<array<_Tp, _Size> >
: public integral_constant<size_t, _Size> {};
template <size_t _Ip, class _Tp, size_t _Size>
class _LIBCPP_TYPE_VIS_ONLY tuple_element<_Ip, array<_Tp, _Size> >
{
public:
typedef _Tp type;
};
template <size_t _Ip, class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
_Tp&
get(array<_Tp, _Size>& __a) _NOEXCEPT
{
static_assert(_Ip < _Size, "Index out of bounds in std::get<> (std::array)");
return __a.__elems_[_Ip];
}
template <size_t _Ip, class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const _Tp&
get(const array<_Tp, _Size>& __a) _NOEXCEPT
{
static_assert(_Ip < _Size, "Index out of bounds in std::get<> (const std::array)");
return __a.__elems_[_Ip];
}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <size_t _Ip, class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
_Tp&&
get(array<_Tp, _Size>&& __a) _NOEXCEPT
{
static_assert(_Ip < _Size, "Index out of bounds in std::get<> (std::array &&)");
return _VSTD::move(__a.__elems_[_Ip]);
}
template <size_t _Ip, class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const _Tp&&
get(const array<_Tp, _Size>&& __a) _NOEXCEPT
{
static_assert(_Ip < _Size, "Index out of bounds in std::get<> (const std::array &&)");
return _VSTD::move(__a.__elems_[_Ip]);
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_ARRAY
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