result_type; ///< type of the return type
};
/** @} */
// 20.3.2 arithmetic
/** @defgroup s20_3_2_arithmetic Arithmetic Classes
* Because basic math often needs to be done during an algorithm,
* the library provides functors for those operations. See the
* documentation for @link s20_3_1_base the base classes@endlink
* for examples of their use.
*
* @{
*/
/// One of the @link s20_3_2_arithmetic math functors@endlink.
template<typename _Tp>
struct plus : public binary_function<_Tp, _Tp, _Tp>
{
_Tp
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x + __y; }
};
/// One of the @link s20_3_2_arithmetic math functors@endlink.
template<typename _Tp>
struct minus : public binary_function<_Tp, _Tp, _Tp>
{
_Tp
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x - __y; }
};
/// One of the @link s20_3_2_arithmetic math functors@endlink.
template<typename _Tp>
struct multiplies : public binary_function<_Tp, _Tp, _Tp>
{
_Tp
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x * __y; }
};
/// One of the @link s20_3_2_arithmetic math functors@endlink.
template<typename _Tp>
struct divides : public binary_function<_Tp, _Tp, _Tp>
{
_Tp
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x / __y; }
};
/// One of the @link s20_3_2_arithmetic math functors@endlink.
template<typename _Tp>
struct modulus : public binary_function<_Tp, _Tp, _Tp>
{
_Tp
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x % __y; }
};
/// One of the @link s20_3_2_arithmetic math functors@endlink.
template<typename _Tp>
struct negate : public unary_function<_Tp, _Tp>
{
_Tp
operator()(const _Tp& __x) const
{ return -__x; }
};
/** @} */
// 20.3.3 comparisons
/** @defgroup s20_3_3_comparisons Comparison Classes
* The library provides six wrapper functors for all the basic comparisons
* in C++, like @c <.
*
* @{
*/
/// One of the @link s20_3_3_comparisons comparison functors@endlink.
template<typename _Tp>
struct equal_to : public binary_function<_Tp, _Tp, bool>
{
bool
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x == __y; }
};
/// One of the @link s20_3_3_comparisons comparison functors@endlink.
template<typename _Tp>
struct not_equal_to : public binary_function<_Tp, _Tp, bool>
{
bool
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x != __y; }
};
/// One of the @link s20_3_3_comparisons comparison functors@endlink.
template<typename _Tp>
struct greater : public binary_function<_Tp, _Tp, bool>
{
bool
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x > __y; }
};
/// One of the @link s20_3_3_comparisons comparison functors@endlink.
template<typename _Tp>
struct less : public binary_function<_Tp, _Tp, bool>
{
bool
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x < __y; }
};
/// One of the @link s20_3_3_comparisons comparison functors@endlink.
template<typename _Tp>
struct greater_equal : public binary_function<_Tp, _Tp, bool>
{
bool
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x >= __y; }
};
/// One of the @link s20_3_3_comparisons comparison functors@endlink.
template<typename _Tp>
struct less_equal : public binary_function<_Tp, _Tp, bool>
{
bool
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x <= __y; }
};
/** @} */
// 20.3.4 logical operations
/** @defgroup s20_3_4_logical Boolean Operations Classes
* Here are wrapper functors for Boolean operations: @c &&, @c ||,
* and @c !.
*
* @{
*/
/// One of the @link s20_3_4_logical Boolean operations functors@endlink.
template<typename _Tp>
struct logical_and : public binary_function<_Tp, _Tp, bool>
{
bool
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x && __y; }
};
/// One of the @link s20_3_4_logical Boolean operations functors@endlink.
template<typename _Tp>
struct logical_or : public binary_function<_Tp, _Tp, bool>
{
bool
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x || __y; }
};
/// One of the @link s20_3_4_logical Boolean operations functors@endlink.
template<typename _Tp>
struct logical_not : public unary_function<_Tp, bool>
{
bool
operator()(const _Tp& __x) const
{ return !__x; }
};
/** @} */
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// DR 660. Missing Bitwise Operations.
template<typename _Tp>
struct bit_and : public binary_function<_Tp, _Tp, _Tp>
{
_Tp
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x & __y; }
};
template<typename _Tp>
struct bit_or : public binary_function<_Tp, _Tp, _Tp>
{
_Tp
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x | __y; }
};
template<typename _Tp>
struct bit_xor : public binary_function<_Tp, _Tp, _Tp>
{
_Tp
operator()(const _Tp& __x, const _Tp& __y) const
{ return __x ^ __y; }
};
// 20.3.5 negators
/** @defgroup s20_3_5_negators Negators
* The functions @c not1 and @c not2 each take a predicate functor
* and return an instance of @c unary_negate or
* @c binary_negate, respectively. These classes are functors whose
* @c operator() performs the stored predicate function and then returns
* the negation of the result.
*
* For example, given a vector of integers and a trivial predicate,
* \code
* struct IntGreaterThanThree
* : public std::unary_function<int, bool>
* {
* bool operator() (int x) { return x > 3; }
* };
*
* std::find_if (v.begin(), v.end(), not1(IntGreaterThanThree()));
* \endcode
* The call to @c find_if will locate the first index (i) of @c v for which
* "!(v[i] > 3)" is true.
*
* The not1/unary_negate combination works on predicates taking a single
* argument. The not2/binary_negate combination works on predicates which
* take two arguments.
*
* @{
*/
/// One of the @link s20_3_5_negators negation functors@endlink.
template<typename _Predicate>
class unary_negate
: public unary_function<typename _Predicate::argument_type, bool>
{
protected:
_Predicate _M_pred;
public:
explicit
unary_negate(const _Predicate& __x) : _M_pred(__x) { }
bool
operator()(const typename _Predicate::argument_type& __x) const
{ return !_M_pred(__x); }
};
/// One of the @link s20_3_5_negators negation functors@endlink.
template<typename _Predicate>
inline unary_negate<_Predicate>
not1(const _Predicate& __pred)
{ return unary_negate<_Predicate>(__pred); }
/// One of the @link s20_3_5_negators negation functors@endlink.
template<typename _PredicatÈ'��É'��Ê'��Ë'��Ì'��Í'��Î'��Ï'��Ð'��Ñ'��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������e>
class binary_negate
: public binary_function<typename _Predicate::first_argument_type,
typename _Predicate::second_argument_type, bool>
{
protected:
_Predicate _M_pred;
public:
explicit
binary_negate(const _Predicate& __x) : _M_pred(__x) { }
bool
operator()(const typename _Predicate::first_argument_type& __x,
const typename _Predicate::second_argument_type& __y) const
{ return !_M_pred(__x, __y); }
};
/// One of the @link s20_3_5_negators negation functors@endlink.
template<typename _Predicate>
inline binary_negate<_Predicate>
not2(const _Predicate& __pred)
{ return binary_negate<_Predicate>(__pred); }
/** @} */
// 20.3.7 adaptors pointers functions
/** @defgroup s20_3_7_adaptors Adaptors for pointers to functions
* The advantage of function objects over pointers to functions is that
* the objects in the standard library declare nested typedefs describing
* their argument and result types with uniform names (e.g., @c result_type
* from the base classes @c unary_function and @c binary_function).
* Sometimes those typedefs are required, not just optional.
*
* Adaptors are provided to turn pointers to unary (single-argument) and
* binary (double-argument) functions into function objects. The
* long-winded functor @c pointer_to_unary_function is constructed with a
* function pointer @c f, and its @c operator() called with argument @c x
* returns @c f(x). The functor @c pointer_to_binary_function does the same
* thing, but with a double-argument @c f and @c operator().
*
* The function @c ptr_fun takes a pointer-to-function @c f and constructs
* an instance of the appropriate functor.
*
* @{
*/
/// One of the @link s20_3_7_adaptors adaptors for function pointers@endlink.
template<typename _Arg, typename _Result>
class pointer_to_unary_function : public unary_function<_Arg, _Result>
{
protected:
_Result (*_M_ptr)(_Arg);
public:
pointer_to_unary_function() { }
explicit
pointer_to_unary_function(_Result (*__x)(_Arg))
: _M_ptr(__x) { }
_Result
operator()(_Arg __x) const
{ return _M_ptr(__x); }
};
/// One of the @link s20_3_7_adaptors adaptors for function pointers@endlink.
template<typename _Arg, typename _Result>
inline pointer_to_unary_function<_Arg, _Result>
ptr_fun(_Result (*__x)(_Arg))
{ return pointer_to_unary_function<_Arg, _Result>(__x); }
/// One of the @link s20_3_7_adaptors adaptors for function pointers@endlink.
template<typename _Arg1, typename _Arg2, typename _Result>
class pointer_to_binary_function
: public binary_function<_Arg1, _Arg2, _Result>
{
protected:
_Result (*_M_ptr)(_Arg1, _Arg2);
public:
pointer_to_binary_function() { }
explicit
pointer_to_binary_function(_Result (*__x)(_Arg1, _Arg2))
: _M_ptr(__x) { }
_Result
operator()(_Arg1 __x, _Arg2 __y) const
{ return _M_ptr(__x, __y); }
};
/// One of the @link s20_3_7_adaptors adaptors for function pointers@endlink.
template<typename _Arg1, typename _Arg2, typename _Result>
inline pointer_to_binary_function<_Arg1, _Arg2, _Result>
ptr_fun(_Result (*__x)(_Arg1, _Arg2))
{ return pointer_to_binary_function<_Arg1, _Arg2, _Result>(__x); }
/** @} */
template<typename _Tp>
struct _Identity : public unary_function<_Tp,_Tp>
{
_Tp&
operator()(_Tp& __x) const
{ return __x; }
const _Tp&
operator()(const _Tp& __x) const
{ return __x; }
};
template<typename _Pair>
struct _Select1st : public unary_function<_Pair,
typename _Pair::first_type>
{
typename _Pair::first_type&
operator()(_Pair& __x) const
{ return __x.first; }
const typename _Pair::first_type&
operator()(const _Pair& __x) const
{ return __x.first; }
};
template<typename _Pair>
struct _Select2nd : public unary_function<_Pair,
typename _Pair::second_type>
{
typename _Pair::second_type&
operator()(_Pair& __x) const
{ return __x.second; }
const typename _Pair::second_type&
operator()(const _Pair& __x) const
{ return __x.second; }
};
// 20.3.8 adaptors pointers members
/** @defgroup s20_3_8_memadaptors Adaptors for pointers to members
* There are a total of 8 = 2^3 function objects in this family.
* (1) Member functions taking no arguments vs member functions taking
* one argument.
* (2) Call through pointer vs call through reference.
* (3) Const vs non-const member function.
*
* All of this complexity is in the function objects themselves. You can
* ignore it by using the helper function mem_fun and mem_fun_ref,
* which create whichever type of adaptor is appropriate.
*
* @{
*/
/// One of the @link s20_3_8_memadaptors adaptors for member
/// pointers@endlink.
template<typename _Ret, typename _Tp>
class mem_fun_t : public unary_function<_Tp*, _Ret>
{
public:
explicit
mem_fun_t(_Ret (_Tp::*__pf)())
: _M_f(__pf) { }
_Ret
operator()(_Tp* __p) const
{ return (__p->*_M_f)(); }
private:
_Ret (_Tp::*_M_f)();
};
/// One of the @link s20_3_8_memadaptors adaptors for member
/// pointers@endlink.
template<typename _Ret, typename _Tp>
class const_mem_fun_t : public unary_function<const _Tp*, _Ret>
{
public:
explicit
const_mem_fun_t(_Ret (_Tp::*__pf)() const)
: _M_f(__pf) { }
_Ret
operator()(const _Tp* __p) const
{ return (__p->*_M_f)(); }
private:
_Ret (_Tp::*_M_f)() const;
};
/// One of the @link s20_3_8_memadaptors adaptors for member
/// pointers@endlink.
template<typename _Ret, typename _Tp>
class mem_fun_ref_t : public unary_function<_Tp, _Ret>
{
public:
explicit
mem_fun_ref_t(_Ret (_Tp::*__pf)())
: _M_f(__pf) { }
_Ret
operator()(_Tp& __r) const
{ return (__r.*_M_f)(); }
private:
_Ret (_Tp::*_M_f)();
};
/// One of the @link s20_3_8_memadaptors adaptors for member
/// pointers@endlink.
template<typename _Ret, typename _Tp>
class const_mem_fun_ref_t : public unary_function<_Tp, _Ret>
{
public:
explicit
const_mem_fun_ref_t(_Ret (_Tp::*__pf)() const)
: _M_f(__pf) { }
_Ret
operator()(const _Tp& __r) const
{ return (__r.*_M_f)(); }
private:
_Ret (_Tp::*_M_f)() const;
};
/// One of the @link s20_3_8_memadaptors adaptors for member
/// pointers@endlink.
template<typename _Ret, typename _Tp, typename _Arg>
class mem_fun1_t : public binary_function<_Tp*, _Arg, _Ret>
{
public:
explicit
mem_fun1_t(_Ret (_Tp::*__pf)(_Arg))
: _M_f(__pf) { }
_Ret
operator()(_Tp* __p, _Arg __x) const
{ return (__p->*_M_f)(__x); }
private:
_Ret (_Tp::*_M_f)(_Arg);
};
/// One of the @link s20_3_8_memadaptors adaptors for member
/// pointers@endlink.
template<typename _Ret, typename _Tp, typename _Arg>
class const_mem_fun1_t : public binary_function<const _Tp*, _Arg, _Ret>
{
public:
explicit
const_mem_fun1_t(_Ret (_Tp::*__pf)(_Arg) const)
: _M_f(__pf) { }
_Ret
operator()(const _Tp* __p, _Arg __x) const
{ return (__p->*_M_f)(__x); }
private:
_Ret (_Tp::*_M_f)(_Arg) const;
};
/// One of the @link s20_3_8_memadaptors adaptors for member
/// pointers@endlink.
template<typename _Ret, typename _Tp, typename _Arg>
class mem_fun1_ref_t : public binary_function<_Tp, _Arg, _Ret>
{
public:
explicit
mem_fun1_ref_t(_Ret (_Tp::*__pf)(_Arg))
: _M_f(__pf) { }
_Ret
operator()(_Tp& __r, _Arg __x) const
{ return (__r.*_M_f)(__x); }
private:
_Ret (_Tp::*_M_f)(_Arg);
};
/// One of the @link s20_3_8_memadaptors adaptors for member
/// pointers@endlink.
template<typename _Ret, typename _Tp, typename _Arg>
class const_mem_fun1_ref_t : public binary_function<_Tp, _Arg, _Ret>
{
public:
explicit
const_mem_fun1_ref_t(_Ret (_Tp::*__pf)(_Arg) const)
: _M_f(__pf) { }
_Ret
operator()(const _Tp& __r, _Arg __x) const
{ return (__r.*_M_f)(__x); }
private:
_Ret (_Tp::*_M_f)(_Arg) const;
};
// Mem_fun adaptor helper functions. There are only two:
// mem_fun and mem_fun_ref.
template<typename _Ret, typename _Tp>
inline mem_fun_t<_Ret, _Tp>
mem_fun(_Ret (_Tp::*__f)())
{ return mem_fun_t<_Ret, _Tp>(__f); }
template<typename _Ret, typename _Tp>
inline const_mem_fun_t<_Ret, _Tp>
mem_fun(_Ret (_Tp::*__f)() const)
{ return const_mem_fun_t<_Ret, _Tp>(__f); }
template<typename _Ret, typename _Tp>
inline mem_fun_ref_t<_Ret, _Tp>
mem_fun_ref(_Ret (_Tp::*__f)())
{ return mem_fun_ref_t<_Ret, _Tp>(__f); }
template<typename _Ret, typename _Tp>
inline const_mem_fun_ref_t<_Ret, _Tp>
mem_fun_ref(_Ret (_Tp::*__f)() const)
{ return const_mem_fun_ref_t<_Ret, _Tp>(__f); }
template<typename _Ret, typename _Tp, typename _Arg>
inline mem_fun1_t<_Ret, _Tp, _Arg>
mem_fun(_Ret (_Tp::*__f)(_Arg))
{ return mem_fun1_t<_Ret, _Tp, _Arg>(__f); }
template<typename _Ret, typename _Tp, typename _Arg>
inline const_mem_fun1_t<_Ret, _Tp, _Arg>
mem_fun(_Ret (_Tp::*__f)(_Arg) const)
{ return const_mem_fun1_t<_Ret, _Tp, _Arg>(__f); }
template<typename _Ret, typename _Tp, typename _Arg>
inline mem_fun1_ref_t<_Ret, _Tp, _Arg>
mem_fun_ref(_Ret (_Tp::*__f)(_Arg))
{ return mem_fun1_ref_t<_Ret, _Tp, _Arg>(__f); }
template<typename _Ret, typename _Tp, typename _Arg>
inline const_mem_fun1_ref_t<_Ret, _Tp, _Arg>
mem_fun_ref(_Ret (_Tp::*__f)(_Arg) const)
{ return const_mem_fun1_ref_t<_Ret, _Tp, _Arg>(__f); }
/** @} */
_GLIBCXX_END_NAMESPACE
#if !defined(__GXX_EXPERIMENTAL_CXX0X__) || _GLIBCXX_DEPRECATED
# include <backward/binders.h>
#endif
#endif /* _STL_FUNCTION_H */
����������������������������������// Numeric functions implementation -*- C++ -*-
// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
/*
*
* Copyright (c) 1994
* Hewlett-Packard Company
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation. Hewlett-Packard Company makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
*
* Copyright (c) 1996,1997
* Silicon Graphics Computer Systems, Inc.
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation. Silicon Graphics makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*/
/** @file stl_numeric.h
* This is an internal header file, included by other library headers.
* You should not attempt to use it directly.
*/
#ifndef _STL_NUMERIC_H
#define _STL_NUMERIC_H 1
#include <bits/concept_check.h>
#include <debug/debug.h>
_GLIBCXX_BEGIN_NESTED_NAMESPACE(std, _GLIBCXX_STD_P)
/**
* @brief Accumulate values in a range.
*
* Accumulates the values in the range [first,last) using operator+(). The
* initial value is @a init. The values are processed in order.
*
* @param first Start of range.
* @param last End of range.
* @param init Starting value to add other values to.
* @return The final sum.
*/
template<typename _InputIterator, typename _Tp>
inline _Tp
accumulate(_InputIterator __first, _InputIterator __last, _Tp __init)
{
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator>)
__glibcxx_requires_valid_range(__first, __last);
for (; __first != __last; ++__first)
__init = __init + *__first;
return __init;
}
/**
* @brief Accumulate values in a range with operation.
*
* Accumulates the values in the range [first,last) using the function
* object @a binary_op. The initial value is @a init. The values are
* processed in order.
*
* @param first Start of range.
* @param last End of range.
* @param init Starting value to add other values to.
* @param binary_op Function object to accumulate with.
* @return The final sum.
*/
template<typename _InputIterator, typename _Tp, typename _BinaryOperation>
inline _Tp
accumulate(_InputIterator __first, _InputIterator __last, _Tp __init,
_BinaryOperation __binary_op)
{
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator>)
__glibcxx_requires_valid_range(__first, __last);
for (; __first != __last; ++__first)
__init = __binary_op(__init, *__first);
return __init;
}
/**
* @brief Compute inner product of two ranges.
*
* Starting with an initial value of @a init, multiplies successive
* elements from the two ranges and adds each product into the accumulated
* value using operator+(). The values in the ranges are processed in
* order.
*
* @param first1 Start of range 1.
* @param last1 End of range 1.
* @param first2 Start of range 2.
* @param init Starting value to add other values to.
* @return The final inner product.
*/
template<typename _InputIterator1, typename _InputIterator2, typename _Tp>
inline _Tp
inner_product(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _Tp __init)
{
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>)
__glibcxx_requires_valid_range(__first1, __last1);
for (; __first1 != __last1; ++__first1, ++__first2)
__init = __init + (*__first1 * *__first2);
return __init;
}
/**
* @brief Compute inner product of two ranges.
*
* Starting with an initial value of @a init, applies @a binary_op2 to
* successive elements from the two ranges and accumulates each result into
* the accumulated value using @a binary_op1. The values in the ranges are
* processed in order.
*
* @param first1 Start of range 1.
* @param last1 End of range 1.
* @param first2 Start of range 2.
* @param init Starting value to add other values to.
* @param binary_op1 Function object to accumulate with.
* @param binary_op2 Function object to apply to pairs of input values.
* @return The final inner product.
*/
template<typename _InputIterator1, typename _InputIterator2, typename _Tp,
typename _BinaryOperation1, typename _BinaryOperation2>
inline _Tp
inner_product(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _Tp __init,
_BinaryOperation1 __binary_op1,
_BinaryOperation2 __binary_op2)
{
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>)
__glibcxx_requires_valid_range(__first1, __last1);
for (; __first1 != __last1; ++__first1, ++__first2)
__init = __binary_op1(__init, __binary_op2(*__first1, *__first2));
return __init;
}
/**
* @brief Return list of partial sums
*
* Accumulates the values in the range [first,last) using operator+().
* As each successive input value is added into the total, that partial sum
* is written to @a result. Therefore, the first value in result is the
* first value of the input, the second value in result is the sum of the
* first and second input values, and so on.
*
* @param first Start of input range.
* @param last End of input range.
* @param result Output to write sums to.
* @return Iterator pointing just beyond the values written to result.
*/
template<typename _InputIterator, typename _OutputIterator>
_OutputIterator
partial_sum(_InputIterator __first, _InputIterator __last,
_OutputIterator __result)
{
typedef typename iterator_traits<_InputIterator>::value_type _ValueType;
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
_ValueType>)
__glibcxx_requires_valid_range(__first, __last);
if (__first == __last)
return __result;
_ValueType __value = *__first;
*__result = __value;
while (++__first != __last)
{
__value = __value + *__first;
*++__result = __value;
}
return ++__result;
}
/**
* @brief Return list of partial sums
*
* Accumulates the values in the range [first,last) using operator+().
* As each successive input value is added into the total, that partial sum
* is written to @a result. Therefore, the first value in result is the
* first value of the input, the second value in result is the sum of the
* first and second input values, and so on.
*
* @param first Start of input range.
* @param last End of input range.
* @param result Output to write sums to.
* @return Iterator pointing just beyond the values written to result.
*/
template<typename _InputIterator, typename _OutputIterator,
typename _BinaryOperation>
_OutputIterator
partial_sum(_InputIterator __first, _InputIterator __last,
_OutputIterator __result, _BinaryOperation __binary_op)
{
typedef typename iterator_traits<_InputIterator>::value_type _ValueType;
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
_ValueType>)
__glibcxx_requires_valid_range(__first, __last);
if (__first == __last)
return __result;
_ValueType __value = *__first;
*__result = __value;
while (++__first != __last)
{
__value = __binary_op(__value, *__first);
*++__result = __value;
}
return ++__result;
}
/**
* @brief Return differences between adjacent values.
*
* Computes the difference between adjacent values in the range
* [first,last) using operator-() and writes the result to @a result.
*
* @param first Start of input range.
* @param last End of input range.
* @param result Output to write sums to.
* @return Iterator pointing just beyond the values written to result.
*/
template<typename _InputIterator, typename _OutputIterator>
_OutputIterator
adjacent_difference(_InputIterator __first,
_InputIterator __last, _OutputIterator __result)
{
typedef typename iterator_traits<_InputIterator>::value_type _ValueType;
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
_ValueType>)
__glibcxx_requires_valid_range(__first, __last);
if (__first == __last)
return __result;
_ValueType __value = *__first;
*__result = __value;
while (++__first != __last)
{
_ValueType __tmp = *__first;
*++__result = __tmp - __value;
__value = __tmp;
}
return ++__result;
}
/**
* @brief Return differences between adjacent values.
*
* Computes the difference between adjacent values in the range
* [first,last) using the function object @a binary_op and writes the
* result to @a result.
*
* @param first Start of input range.
* @param last End of input range.
* @param result Output to write sums to.
* @return Iterator pointing just beyond the values written to result.
*/
template<typename _InputIterator, typename _OutputIterator,
typename _BinaryOperation>
_OutputIterator
adjacent_difference(_InputIterator __first, _InputIterator __last,
_OutputIterator __result, _BinaryOperation __binary_op)
{
typedef typename iterator_traits<_InputIterator>::value_type _ValueType;
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
_ValueType>)
__glibcxx_requires_valid_range(__firstß'��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������, __last);
if (__first == __last)
return __result;
_ValueType __value = *__first;
*__result = __value;
while (++__first != __last)
{
_ValueType __tmp = *__first;
*++__result = __binary_op(__tmp, __value);
__value = __tmp;
}
return ++__result;
}
_GLIBCXX_END_NESTED_NAMESPACE
#endif /* _STL_NUMERIC_H */
������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������// vector<bool> specialization -*- C++ -*-
// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
/*
*
* Copyright (c) 1994
* Hewlett-Packard Company
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation. Hewlett-Packard Company makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
*
* Copyright (c) 1996-1999
* Silicon Graphics Computer Systems, Inc.
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation. Silicon Graphics makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*/
/** @file stl_bvector.h
* This is an internal header file, included by other library headers.
* You should not attempt to use it directly.
*/
#ifndef _STL_BVECTOR_H
#define _STL_BVECTOR_H 1
_GLIBCXX_BEGIN_NESTED_NAMESPACE(std, _GLIBCXX_STD_D)
typedef unsigned long _Bit_type;
enum { _S_word_bit = int(__CHAR_BIT__ * sizeof(_Bit_type)) };
struct _Bit_reference
{
_Bit_type * _M_p;
_Bit_type _M_mask;
_Bit_reference(_Bit_type * __x, _Bit_type __y)
: _M_p(__x), _M_mask(__y) { }
_Bit_reference() : _M_p(0), _M_mask(0) { }
operator bool() const
{ return !!(*_M_p & _M_mask); }
_Bit_reference&
operator=(bool __x)
{
if (__x)
*_M_p |= _M_mask;
else
*_M_p &= ~_M_mask;
return *this;
}
_Bit_reference&
operator=(const _Bit_reference& __x)
{ return *this = bool(__x); }
bool
operator==(const _Bit_reference& __x) const
{ return bool(*this) == bool(__x); }
bool
operator<(const _Bit_reference& __x) const
{ return !bool(*this) && bool(__x); }
void
flip()
{ *_M_p ^= _M_mask; }
};
struct _Bit_iterator_base
: public std::iterator<std::random_access_iterator_tag, bool>
{
_Bit_type * _M_p;
unsigned int _M_offset;
_Bit_iterator_base(_Bit_type * __x, unsigned int __y)
: _M_p(__x), _M_offset(__y) { }
void
_M_bump_up()
{
if (_M_offset++ == int(_S_word_bit) - 1)
{
_M_offset = 0;
++_M_p;
}
}
void
_M_bump_down()
{
if (_M_offset-- == 0)
{
_M_offset = int(_S_word_bit) - 1;
--_M_p;
}
}
void
_M_incr(ptrdiff_t __i)
{
difference_type __n = __i + _M_offset;
_M_p += __n / int(_S_word_bit);
__n = __n % int(_S_word_bit);
if (__n < 0)
{
__n += int(_S_word_bit);
--_M_p;
}
_M_offset = static_cast<unsigned int>(__n);
}
bool
operator==(const _Bit_iterator_base& __i) const
{ return _M_p == __i._M_p && _M_offset == __i._M_offset; }
bool
operator<(const _Bit_iterator_base& __i) const
{
return _M_p < __i._M_p
|| (_M_p == __i._M_p && _M_offset < __i._M_offset);
}
bool
operator!=(const _Bit_iterator_base& __i) const
{ return !(*this == __i); }
bool
operator>(const _Bit_iterator_base& __i) const
{ return __i < *this; }
bool
operator<=(const _Bit_iterator_base& __i) const
{ return !(__i < *this); }
bool
operator>=(const _Bit_iterator_base& __i) const
{ return !(*this < __i); }
};
inline ptrdiff_t
operator-(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
{
return (int(_S_word_bit) * (__x._M_p - __y._M_p)
+ __x._M_offset - __y._M_offset);
}
struct _Bit_iterator : public _Bit_iterator_base
{
typedef _Bit_reference reference;
typedef _Bit_reference* pointer;
typedef _Bit_iterator iterator;
_Bit_iterator() : _Bit_iterator_base(0, 0) { }
_Bit_iterator(_Bit_type * __x, unsigned int __y)
: _Bit_iterator_base(__x, __y) { }
reference
operator*() const
{ return reference(_M_p, 1UL << _M_offset); }
iterator&
operator++()
{
_M_bump_up();
return *this;
}
iterator
operator++(int)
{
iterator __tmp = *this;
_M_bump_up();
return __tmp;
}
iterator&
operator--()
{
_M_bump_down();
return *this;
}
iterator
operator--(int)
{
iterator __tmp = *this;
_M_bump_down();
return __tmp;
}
iterator&
operator+=(difference_type __i)
{
_M_incr(__i);
return *this;
}
iterator&
operator-=(difference_type __i)
{
*this += -__i;
return *this;
}
iterator
operator+(difference_type __i) const
{
iterator __tmp = *this;
return __tmp += __i;
}
iterator
operator-(difference_type __i) const
{
iterator __tmp = *this;
return __tmp -= __i;
}
reference
operator[](difference_type __i) const
{ return *(*this + __i); }
};
inline _Bit_iterator
operator+(ptrdiff_t __n, const _Bit_iterator& __x)
{ return __x + __n; }
struct _Bit_const_iterator : public _Bit_iterator_base
{
typedef bool reference;
typedef bool const_reference;
typedef const bool* pointer;
typedef _Bit_const_iterator const_iterator;
_Bit_const_iterator() : _Bit_iterator_base(0, 0) { }
_Bit_const_iterator(_Bit_type * __x, unsigned int __y)
: _Bit_iterator_base(__x, __y) { }
_Bit_const_iterator(const _Bit_iterator& __x)
: _Bit_iterator_base(__x._M_p, __x._M_offset) { }
const_reference
operator*() const
{ return _Bit_reference(_M_p, 1UL << _M_offset); }
const_iterator&
operator++()
{
_M_bump_up();
return *this;
}
const_iterator
operator++(int)
{
const_iterator __tmp = *this;
_M_bump_up();
return __tmp;
}
const_iterator&
operator--()
{
_M_bump_down();
return *this;
}
const_iterator
operator--(int)
{
const_iterator __tmp = *this;
_M_bump_down();
return __tmp;
}
const_iterator&
operator+=(difference_type __i)
{
_M_incr(__i);
return *this;
}
const_iterator&
operator-=(difference_type __i)
{
*this += -__i;
return *this;
}
const_iterator
operator+(difference_type __i) const
{
const_iterator __tmp = *this;
return __tmp += __i;
}
const_iterator
operator-(difference_type __i) const
{
const_iterator __tmp = *this;
return __tmp -= __i;
}
const_reference
operator[](difference_type __i) const
{ return *(*this + __i); }
};
inline _Bit_const_iterator
operator+(ptrdiff_t __n, const _Bit_const_iterator& __x)
{ return __x + __n; }
inline void
__fill_bvector(_Bit_iterator __first, _Bit_iterator __last, bool __x)
{
for (; __first != __last; ++__first)
*__first = __x;
}
inline void
fill(_Bit_iterator __first, _Bit_iterator __last, const bool& __x)
{
if (__first._M_p != __last._M_p)
{
std::fill(__first._M_p + 1, __last._M_p, __x ? ~0 : 0);
__fill_bvector(__first, _Bit_iterator(__first._M_p + 1, 0), __x);
__fill_bvector(_Bit_iterator(__last._M_p, 0), __last, __x);
}
else
__fill_bvector(__first, __last, __x);
}
template<typename _Alloc>
struct _Bvector_base
{
typedef typename _Alloc::template rebind<_Bit_type>::other
_Bit_alloc_type;
struct _Bvector_impl
: public _Bit_alloc_type
{
_Bit_iterator _M_start;
_Bit_iterator _M_finish;
_Bit_type* _M_end_of_storage;
_Bvector_impl()
: _Bit_alloc_type(), _M_start(), _M_finish(), _M_end_of_storage(0)
{ }
_Bvector_impl(const _Bit_alloc_type& __a)
: _Bit_alloc_type(__a), _M_start(), _M_finish(), _M_end_of_storage(0)
{ }
};
public:
typedef _Alloc allocator_type;
_Bit_alloc_type&
_M_get_Bit_allocator()
{ return *static_cast<_Bit_alloc_type*>(&this->_M_impl); }
const _Bit_alloc_type&
_M_get_Bit_allocator() const
{ return *static_cast<const _Bit_alloc_type*>(&this->_M_impl); }
allocator_type
get_allocator() const
{ return allocator_type(_M_get_Bit_allocator()); }
_Bvector_base()
: _M_impl() { }
_Bvector_base(const allocator_type& __a)
: _M_impl(__a) { }
#ifdef __GXX_EXPERIMENTAL_CXX0X__
_Bvector_base(_Bvector_base&& __x)
: _M_impl(__x._M_get_Bit_allocator())
{
this->_M_impl._M_start = __x._M_impl._M_start;
this->_M_impl._M_finish = __x._M_impl._M_finish;
this->_M_impl._M_end_of_storage = __x._M_impl._M_end_of_storage;
__x._M_impl._M_start = _Bit_iterator();
__x._M_impl._M_finish = _Bit_iterator();
__x._M_impl._M_end_of_storage = 0;
}
#endif
~_Bvector_base()
{ this->_M_deallocate(); }
protected:
_Bvector_impl _M_impl;
_Bit_type*
_M_allocate(size_t __n)
{ return _M_impl.allocate((__n + int(_S_word_bit) - 1)
/ int(_S_word_bit)); }
void
_M_deallocate()
{
if (_M_impl._M_start._M_p)
_M_impl.deallocate(_M_impl._M_start._M_p,
_M_impl._M_end_of_storage - _M_impl._M_start._M_p);
}
};
_GLIBCXX_END_NESTED_NAMESPACE
// Declare a partial specialization of vector<T, Alloc>.
#include <bits/stl_vector.h>
_GLIBCXX_BEGIN_NESTED_NAMESPACE(std, _GLIBCXX_STD_D)
/**
* @brief A specialization of vector for booleans which offers fixed time
* access to individual elements in any order.
*
* Note that vector<bool> does not actually meet the requirements for being
* a container. This is because the reference and pointer types are not
* really references and pointers to bool. See DR96 for details. @see
* vector for function documentation.
*
* @ingroup Containers
* @ingroup Sequences
*
* In some terminology a %vector can be described as a dynamic
* C-style array, it offers fast and efficient access to individual
* elements in any order and saves the user from worrying about
* memory and size allocation. Subscripting ( @c [] ) access is
* also provided as with C-style arrays.
*/
template<typename _Alloc>
class vector<bool, _Alloc> : protected _Bvector_base<_Alloc>
{
typedef _Bvector_base<_Alloc> _Base;
public:
typedef bool value_type;
typedef size_t size_type;
typedef ptrdiff_t difference_type;í'��î'��ï'��ð'��ñ'��ò'��ó'��ô'��õ'��ö'��÷'��ø'��ù'��ú'����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������
typedef _Bit_reference reference;
typedef bool const_reference;
typedef _Bit_reference* pointer;
typedef const bool* const_pointer;
typedef _Bit_iterator iterator;
typedef _Bit_const_iterator const_iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
typedef std::reverse_iterator<iterator> reverse_iterator;
typedef _Alloc allocator_type;
allocator_type get_allocator() const
{ return _Base::get_allocator(); }
protected:
using _Base::_M_allocate;
using _Base::_M_deallocate;
using _Base::_M_get_Bit_allocator;
public:
vector()
: _Base() { }
explicit
vector(const allocator_type& __a)
: _Base(__a) { }
explicit
vector(size_type __n, const bool& __value = bool(),
const allocator_type& __a = allocator_type())
: _Base(__a)
{
_M_initialize(__n);
std::fill(this->_M_impl._M_start._M_p, this->_M_impl._M_end_of_storage,
__value ? ~0 : 0);
}
vector(const vector& __x)
: _Base(__x._M_get_Bit_allocator())
{
_M_initialize(__x.size());
_M_copy_aligned(__x.begin(), __x.end(), this->_M_impl._M_start);
}
#ifdef __GXX_EXPERIMENTAL_CXX0X__
vector(vector&& __x)
: _Base(std::forward<_Base>(__x)) { }
#endif
template<typename _InputIterator>
vector(_InputIterator __first, _InputIterator __last,
const allocator_type& __a = allocator_type())
: _Base(__a)
{
typedef typename std::__is_integer<_InputIterator>::__type _Integral;
_M_initialize_dispatch(__first, __last, _Integral());
}
~vector() { }
vector&
operator=(const vector& __x)
{
if (&__x == this)
return *this;
if (__x.size() > capacity())
{
this->_M_deallocate();
_M_initialize(__x.size());
}
this->_M_impl._M_finish = _M_copy_aligned(__x.begin(), __x.end(),
begin());
return *this;
}
#ifdef __GXX_EXPERIMENTAL_CXX0X__
vector&
operator=(vector&& __x)
{
// NB: DR 675.
this->clear();
this->swap(__x);
return *this;
}
#endif
// assign(), a generalized assignment member function. Two
// versions: one that takes a count, and one that takes a range.
// The range version is a member template, so we dispatch on whether
// or not the type is an integer.
void
assign(size_type __n, const bool& __x)
{ _M_fill_assign(__n, __x); }
template<typename _InputIterator>
void
assign(_InputIterator __first, _InputIterator __last)
{
typedef typename std::__is_integer<_InputIterator>::__type _Integral;
_M_assign_dispatch(__first, __last, _Integral());
}
iterator
begin()
{ return this->_M_impl._M_start; }
const_iterator
begin() const
{ return this->_M_impl._M_start; }
iterator
end()
{ return this->_M_impl._M_finish; }
const_iterator
end() const
{ return this->_M_impl._M_finish; }
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()); }
#ifdef __GXX_EXPERIMENTAL_CXX0X__
const_iterator
cbegin() const
{ return this->_M_impl._M_start; }
const_iterator
cend() const
{ return this->_M_impl._M_finish; }
const_reverse_iterator
crbegin() const
{ return const_reverse_iterator(end()); }
const_reverse_iterator
crend() const
{ return const_reverse_iterator(begin()); }
#endif
size_type
size() const
{ return size_type(end() - begin()); }
size_type
max_size() const
{
const size_type __isize =
__gnu_cxx::__numeric_traits<difference_type>::__max
- int(_S_word_bit) + 1;
const size_type __asize = _M_get_Bit_allocator().max_size();
return (__asize <= __isize / int(_S_word_bit)
? __asize * int(_S_word_bit) : __isize);
}
size_type
capacity() const
{ return size_type(const_iterator(this->_M_impl._M_end_of_storage, 0)
- begin()); }
bool
empty() const
{ return begin() == end(); }
reference
operator[](size_type __n)
{
return *iterator(this->_M_impl._M_start._M_p
+ __n / int(_S_word_bit), __n % int(_S_word_bit));
}
const_reference
operator[](size_type __n) const
{
return *const_iterator(this->_M_impl._M_start._M_p
+ __n / int(_S_word_bit), __n % int(_S_word_bit));
}
protected:
void
_M_range_check(size_type __n) const
{
if (__n >= this->size())
__throw_out_of_range(__N("vector<bool>::_M_range_check"));
}
public:
reference
at(size_type __n)
{ _M_range_check(__n); return (*this)[__n]; }
const_reference
at(size_type __n) const
{ _M_range_check(__n); return (*this)[__n]; }
void
reserve(size_type __n);
reference
front()
{ return *begin(); }
const_reference
front() const
{ return *begin(); }
reference
back()
{ return *(end() - 1); }
const_reference
back() const
{ return *(end() - 1); }
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// DR 464. Suggestion for new member functions in standard containers.
// N.B. DR 464 says nothing about vector<bool> but we need something
// here due to the way we are implementing DR 464 in the debug-mode
// vector class.
void
data() { }
void
push_back(bool __x)
{
if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_of_storage)
*this->_M_impl._M_finish++ = __x;
else
_M_insert_aux(end(), __x);
}
void
#ifdef __GXX_EXPERIMENTAL_CXX0X__
swap(vector&& __x)
#else
swap(vector& __x)
#endif
{
std::swap(this->_M_impl._M_start, __x._M_impl._M_start);
std::swap(this->_M_impl._M_finish, __x._M_impl._M_finish);
std::swap(this->_M_impl._M_end_of_storage,
__x._M_impl._M_end_of_storage);
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 431. Swapping containers with unequal allocators.
std::__alloc_swap<typename _Base::_Bit_alloc_type>::
_S_do_it(_M_get_Bit_allocator(), __x._M_get_Bit_allocator());
}
// [23.2.5]/1, third-to-last entry in synopsis listing
static void
swap(reference __x, reference __y)
{
bool __tmp = __x;
__x = __y;
__y = __tmp;
}
iterator
insert(iterator __position, const bool& __x = bool())
{
const difference_type __n = __position - begin();
if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_of_storage
&& __position == end())
*this->_M_impl._M_finish++ = __x;
else
_M_insert_aux(__position, __x);
return begin() + __n;
}
template<typename _InputIterator>
void
insert(iterator __position,
_InputIterator __first, _InputIterator __last)
{
typedef typename std::__is_integer<_InputIterator>::__type _Integral;
_M_insert_dispatch(__position, __first, __last, _Integral());
}
void
insert(iterator __position, size_type __n, const bool& __x)
{ _M_fill_insert(__position, __n, __x); }
void
pop_back()
{ --this->_M_impl._M_finish; }
iterator
erase(iterator __position)
{
if (__position + 1 != end())
std::copy(__position + 1, end(), __position);
--this->_M_impl._M_finish;
return __position;
}
iterator
erase(iterator __first, iterator __last)
{
_M_erase_at_end(std::copy(__last, end(), __first));
return __first;
}
void
resize(size_type __new_size, bool __x = bool())
{
if (__new_size < size())
_M_erase_at_end(begin() + difference_type(__new_size));
else
insert(end(), __new_size - size(), __x);
}
void
flip()
{
for (_Bit_type * __p = this->_M_impl._M_start._M_p;
__p != this->_M_impl._M_end_of_storage; ++__p)
*__p = ~*__p;
}
void
clear()
{ _M_erase_at_end(begin()); }
protected:
// Precondition: __first._M_offset == 0 && __result._M_offset == 0.
iterator
_M_copy_aligned(const_iterator __first, const_iterator __last,
iterator __result)
{
_Bit_type* __q = std::copy(__first._M_p, __last._M_p, __result._M_p);
return std::copy(const_iterator(__last._M_p, 0), __last,
iterator(__q, 0));
}
void
_M_initialize(size_type __n)
{
_Bit_type* __q = this->_M_allocate(__n);
this->_M_impl._M_end_of_storage = (__q
+ ((__n + int(_S_word_bit) - 1)
/ int(_S_word_bit)));
this->_M_impl._M_start = iterator(__q, 0);
this->_M_impl._M_finish = this->_M_impl._M_start + difference_type(__n);
}
// Check whether it's an integral type. If so, it's not an iterator.
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 438. Ambiguity in the "do the right thing" clause
template<typename _Integer>
void
_M_initialize_dispatch(_Integer __n, _Integer __x, __true_type)
{
_M_initialize(static_cast<size_type>(__n));
std::fill(this->_M_impl._M_start._M_p,
this->_M_impl._M_end_of_storage, __x ? ~0 : 0);
}
template<typename _InputIterator>
void
_M_initialize_dispatch(_InputIterator __first, _InputIterator __last,
__false_type)
{ _M_initialize_range(__first, __last,
std::__iterator_category(__first)); }
template<typename _InputIterator>
void
_M_initialize_range(_InputIterator __first, _InputIterator __last,
std::input_iterator_tag)
{
for (; __first != __last; ++__first)
push_back(*__first);
}
template<typename _ForwardIterator>
void
_M_initialize_range(_ForwardIterator __first, _ForwardIterator __last,
std::forward_iterator_tag)
{
const size_type __n = std::distance(__first, __last);
_M_initialize(__n);
std::copy(__first, __last, this->_M_impl._M_start);
}
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 438. Ambiguity in the "do the right thing" clause
template<typename _Integer>
void
_M_assign_dispatch(_Integer __n, _Integer __val, __true_type)
{ _M_fill_assign(__n, __val); }
template<class _InputIterator>
void
_M_assign_dispatch(_InputIterator __first, _InputIterator __last,
__false_type)
{ _M_assign_aux(__first, __last, std::__iterator_category(__first)); }
void
_M_fill_assign(size_t __n, bool __x)
{
if (__n > size())
{
std::fill(this->_M_impl._M_start._M_p,
this->_M_impl._M_end_of_storage, __x ? ~0 : 0);
insert(end(), __n - size(), __x);
}
else
{
_M_erase_at_end(begin() + __n);
std::fill(this->_M_impl._M_start._M_p,
this->_M_impl._M_end_of_storage, __x ? ~0 : 0);
}
}
template<typename _InputIterator>
void
_M_assign_aux(_InputIterator __first, _InputIterator __last,
std::input_iterator_tag)
{
iterator __cur = begin();
for (; __first != __last && __cur != end(); ++__cur, ++__first)
*__cur = *__first;
if (__first == __last)
_M_erase_at_end(__cur);
else
insert(end(), __first, __last);
}
template<typename _ForwardIterator>
void
_M_assign_aux(_ForwardIterator __first, _ForwardIterator __last,
std::forward_iterator_tag)
{
const size_type __len = std::distance(__first, __last);
if (__len < size())
_M_erase_at_end(std::copy(__first, __last, begin()));
else
{
_ForwardIterator __mid = __first;
std::advance(__mid, size());
std::copy(__first, __mid, begin());
insert(end(), __mid, __last);
}
}
// Check whether it's an integral type. If so, it's not an iterator.
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 438. Ambiguity in the "do the right thing" clause
template<typename _Integer>
void
_M_insert_dispatch(iterator __pos, _Integer __n, _Integer __x,
__true_type)
{ _M_fill_insert(__pos, __n, __x); }
template<typename _InputIterator>
void
_M_insert_dispatch(iterator __pos,
_InputIterator __first, _InputIterator __last,
__false_type)
{ _M_insert_range(__pos, __first, __last,
std::__iterator_category(__first)); }
void
_M_fill_insert(iterator __position, size_type __n, bool __x);
template<typename _InputIterator>
void
_M_insert_range(iterator __pos, _InputIterator __first,
_InputIterator __last, std::input_iterator_tag)
{
for (; __first != __last; ++__first)
{
__pos = insert(__pos, *__first);
++__pos;
}
}
template<typename _ForwardIterator>
void
_M_insert_range(iterator __position, _ForwardIterator __first,
_ForwardIterator __last, std::forward_iterator_tag);
void
_M_insert_aux(iterator __position, bool __x);
size_type
_M_check_len(size_type __n, const char* __s) const
{
if (max_size() - size() < __n)
__throw_length_error(__N(__s));
const size_type __len = size() + std::max(size(), __n);
return (__len < size() || __len > max_size()) ? max_size() : __len;
}
void
_M_erase_at_end(iterator __pos)
{ this->_M_impl._M_finish = __pos; }
};
_GLIBCXX_END_NESTED_NAMESPACE
#endif
��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������// Move, forward and identity for C++0x + swap -*- C++ -*-
// Copyright (C) 2007 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
/** @file stl_move.h
* This is an internal header file, included by other library headers.
* You should not attempt to use it directly.
*/
#ifndef _STL_MOVE_H
#define _STL_MOVE_H 1
#include <bits/c++config.h>
#include <bits/concept_check.h>
#ifdef __GXX_EXPERIMENTAL_CXX0X__
#include <type_traits>
_GLIBCXX_BEGIN_NAMESPACE(std)
// 20.2.2, forward/move
template<typename _Tp>
struct identity
{
typedef _Tp type;
};
template<typename _Tp>
inline _Tp&&
forward(typename std::identity<_Tp>::type&& __t)
{ return __t; }
template<typename _Tp>
inline typename std::remove_reference<_Tp>::type&&
move(_Tp&& __t)
{ return __t; }
_GLIBCXX_END_NAMESPACE
#define _GLIBCXX_MOVE(_Tp) std::move(_Tp)
#else
#define _GLIBCXX_MOVE(_Tp) (_Tp)
#endif
_GLIBCXX_BEGIN_NAMESPACE(std)
/**
* @brief Swaps two values.
* @param a A thing of arbitrary type.
* @param b Another thing of arbitrary type.
* @return Nothing.
*/
template<typename _Tp>
inline void
swap(_Tp& __a, _Tp& __b)
{
// concept requirements
__glibcxx_function_requires(_SGIAssignableConcept<_Tp>)
_Tp __tmp = _GLIBCXX_MOVE(__a);
__a = _GLIBCXX_MOVE(__b);
__b = _GLIBCXX_MOVE(__tmp);
}
_GLIBCXX_END_NAMESPACE
#endif /* _STL_MOVE_H */
������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������// The template and inlines for the -*- C++ -*- internal _Meta class.
// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
/** @file valarray_before.h
* This is an internal header file, included by other library headers.
* You should not attempt to use it directly.
*/
// Written by Gabriel Dos Reis <Gabriel.Dos-Reis@cmla.ens-cachan.fr>
#ifndef _VALARRAY_BEFORE_H
#define _VALARRAY_BEFORE_H 1
#pragma GCC system_header
#include <bits/slice_array.h>
_GLIBCXX_BEGIN_NAMESPACE(std)
//
// Implementing a loosened valarray return value is tricky.
// First we need to meet 26.3.1/3: we should not add more than
// two levels of template nesting. T