sync with N3126

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@113101 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant
2010-09-05 01:14:30 +00:00
parent a2ccccce89
commit 3991b553df
83 changed files with 0 additions and 0 deletions

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// template <class Alloc>
// explicit priority_queue(const Alloc& a);
#include <queue>
#include <cassert>
#include "../../../../test_allocator.h"
template <class T>
struct test
: public std::priority_queue<T, std::vector<T, test_allocator<T> > >
{
typedef std::priority_queue<T, std::vector<T, test_allocator<T> > > base;
typedef typename base::container_type container_type;
typedef typename base::value_compare value_compare;
explicit test(const test_allocator<int>& a) : base(a) {}
test(const value_compare& comp, const test_allocator<int>& a)
: base(comp, c, a) {}
test(const value_compare& comp, const container_type& c,
const test_allocator<int>& a) : base(comp, c, a) {}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
test(const value_compare& comp, container_type&& c,
const test_allocator<int>& a) : base(comp, std::move(c), a) {}
test(test&& q, const test_allocator<int>& a) : base(std::move(q), a) {}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
test_allocator<int> get_allocator() {return c.get_allocator();}
using base::c;
};
int main()
{
test<int> q((test_allocator<int>(3)));
assert(q.c.get_allocator() == test_allocator<int>(3));
assert(q.c.size() == 0);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// template <class Alloc>
// priority_queue(const Compare& comp, const Alloc& a);
#include <queue>
#include <cassert>
#include "../../../../test_allocator.h"
template <class T>
struct test
: public std::priority_queue<T, std::vector<T, test_allocator<T> > >
{
typedef std::priority_queue<T, std::vector<T, test_allocator<T> > > base;
typedef typename base::container_type container_type;
typedef typename base::value_compare value_compare;
explicit test(const test_allocator<int>& a) : base(a) {}
test(const value_compare& comp, const test_allocator<int>& a)
: base(comp, a) {}
test(const value_compare& comp, const container_type& c,
const test_allocator<int>& a) : base(comp, c, a) {}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
test(const value_compare& comp, container_type&& c,
const test_allocator<int>& a) : base(comp, std::move(c), a) {}
test(test&& q, const test_allocator<int>& a) : base(std::move(q), a) {}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
test_allocator<int> get_allocator() {return c.get_allocator();}
using base::c;
};
int main()
{
test<int> q(std::less<int>(), test_allocator<int>(3));
assert(q.c.get_allocator() == test_allocator<int>(3));
assert(q.c.size() == 0);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// template <class Alloc>
// priority_queue(const Compare& comp, const container_type& c,
// const Alloc& a);
#include <queue>
#include <cassert>
#include "../../../../test_allocator.h"
template <class C>
C
make(int n)
{
C c;
for (int i = 0; i < n; ++i)
c.push_back(i);
return c;
}
template <class T>
struct test
: public std::priority_queue<T, std::vector<T, test_allocator<T> > >
{
typedef std::priority_queue<T, std::vector<T, test_allocator<T> > > base;
typedef typename base::container_type container_type;
typedef typename base::value_compare value_compare;
explicit test(const test_allocator<int>& a) : base(a) {}
test(const value_compare& comp, const test_allocator<int>& a)
: base(comp, a) {}
test(const value_compare& comp, const container_type& c,
const test_allocator<int>& a) : base(comp, c, a) {}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
test(const value_compare& comp, container_type&& c,
const test_allocator<int>& a) : base(comp, std::move(c), a) {}
test(test&& q, const test_allocator<int>& a) : base(std::move(q), a) {}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
test_allocator<int> get_allocator() {return c.get_allocator();}
using base::c;
};
int main()
{
typedef std::vector<int, test_allocator<int> > C;
C v = make<C>(5);
test<int> q(std::less<int>(), v, test_allocator<int>(3));
assert(q.c.get_allocator() == test_allocator<int>(3));
assert(q.size() == 5);
assert(q.top() == 4);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// template <class Alloc>
// priority_queue(const Compare& comp, container_type&& c,
// const Alloc& a);
#include <queue>
#include <cassert>
#include "../../../../test_allocator.h"
template <class C>
C
make(int n)
{
C c;
for (int i = 0; i < n; ++i)
c.push_back(i);
return c;
}
template <class T>
struct test
: public std::priority_queue<T, std::vector<T, test_allocator<T> > >
{
typedef std::priority_queue<T, std::vector<T, test_allocator<T> > > base;
typedef typename base::container_type container_type;
typedef typename base::value_compare value_compare;
explicit test(const test_allocator<int>& a) : base(a) {}
test(const value_compare& comp, const test_allocator<int>& a)
: base(comp, a) {}
test(const value_compare& comp, const container_type& c,
const test_allocator<int>& a) : base(comp, c, a) {}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
test(const value_compare& comp, container_type&& c,
const test_allocator<int>& a) : base(comp, std::move(c), a) {}
test(test&& q, const test_allocator<int>& a) : base(std::move(q), a) {}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
test_allocator<int> get_allocator() {return c.get_allocator();}
using base::c;
};
int main()
{
typedef std::vector<int, test_allocator<int> > C;
test<int> q(std::less<int>(), make<C>(5), test_allocator<int>(3));
assert(q.c.get_allocator() == test_allocator<int>(3));
assert(q.size() == 5);
assert(q.top() == 4);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// template <class Alloc>
// priority_queue(const priority_queue& q, const Alloc& a);
#include <queue>
#include <cassert>
template <class C>
C
make(int n)
{
C c;
for (int i = 0; i < n; ++i)
c.push_back(i);
return c;
}
#include "../../../../test_allocator.h"
template <class T>
struct test
: public std::priority_queue<T, std::vector<T, test_allocator<T> > >
{
typedef std::priority_queue<T, std::vector<T, test_allocator<T> > > base;
typedef typename base::container_type container_type;
typedef typename base::value_compare value_compare;
explicit test(const test_allocator<int>& a) : base(a) {}
test(const value_compare& comp, const test_allocator<int>& a)
: base(comp, c, a) {}
test(const value_compare& comp, const container_type& c,
const test_allocator<int>& a) : base(comp, c, a) {}
test(const test& q, const test_allocator<int>& a) : base(q, a) {}
test_allocator<int> get_allocator() {return c.get_allocator();}
using base::c;
};
int main()
{
test<int> qo(std::less<int>(),
make<std::vector<int, test_allocator<int> > >(5),
test_allocator<int>(2));
test<int> q(qo, test_allocator<int>(6));
assert(q.size() == 5);
assert(q.c.get_allocator() == test_allocator<int>(6));
assert(q.top() == int(4));
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// template <class Alloc>
// priority_queue(priority_queue&& q, const Alloc& a);
#include <queue>
#include <cassert>
#include "../../../../MoveOnly.h"
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class C>
C
make(int n)
{
C c;
for (int i = 0; i < n; ++i)
c.push_back(MoveOnly(i));
return c;
}
#include "../../../../test_allocator.h"
template <class T>
struct test
: public std::priority_queue<T, std::vector<T, test_allocator<T> > >
{
typedef std::priority_queue<T, std::vector<T, test_allocator<T> > > base;
typedef typename base::container_type container_type;
typedef typename base::value_compare value_compare;
explicit test(const test_allocator<int>& a) : base(a) {}
test(const value_compare& comp, const test_allocator<int>& a)
: base(comp, c, a) {}
test(const value_compare& comp, const container_type& c,
const test_allocator<int>& a) : base(comp, c, a) {}
test(const value_compare& comp, container_type&& c,
const test_allocator<int>& a) : base(comp, std::move(c), a) {}
test(test&& q, const test_allocator<int>& a) : base(std::move(q), a) {}
test_allocator<int> get_allocator() {return c.get_allocator();}
using base::c;
};
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
int main()
{
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
test<MoveOnly> qo(std::less<MoveOnly>(),
make<std::vector<MoveOnly, test_allocator<MoveOnly> > >(5),
test_allocator<MoveOnly>(2));
test<MoveOnly> q(std::move(qo), test_allocator<MoveOnly>(6));
assert(q.size() == 5);
assert(q.c.get_allocator() == test_allocator<MoveOnly>(6));
assert(q.top() == MoveOnly(4));
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue& operator=(const priority_queue&) = default;
#include <queue>
#include <cassert>
template <class C>
C
make(int n)
{
C c;
for (int i = 0; i < n; ++i)
c.push_back(i);
return c;
}
int main()
{
std::vector<int> v = make<std::vector<int> >(5);
std::priority_queue<int, std::vector<int>, std::greater<int> > qo(std::greater<int>(), v);
std::priority_queue<int, std::vector<int>, std::greater<int> > q;
q = qo;
assert(q.size() == 5);
assert(q.top() == 0);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue& operator=(priority_queue&& q);
#include <queue>
#include <cassert>
#include "../../../../MoveOnly.h"
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class C>
C
make(int n)
{
C c;
for (int i = 0; i < n; ++i)
c.push_back(MoveOnly(i));
return c;
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
int main()
{
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
std::priority_queue<MoveOnly> qo(std::less<MoveOnly>(), make<std::vector<MoveOnly> >(5));
std::priority_queue<MoveOnly> q;
q = std::move(qo);
assert(q.size() == 5);
assert(q.top() == MoveOnly(4));
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// explicit priority_queue(const Compare& comp);
#include <queue>
#include <cassert>
#include "../../../../stack_allocator.h"
int main()
{
std::priority_queue<int, std::vector<int, stack_allocator<int, 10> > > q((std::less<int>()));
assert(q.size() == 0);
q.push(1);
q.push(2);
assert(q.size() == 2);
assert(q.top() == 2);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// explicit priority_queue(const Compare& comp, const container_type& c);
#include <queue>
#include <cassert>
template <class C>
C
make(int n)
{
C c;
for (int i = 0; i < n; ++i)
c.push_back(i);
return c;
}
int main()
{
std::vector<int> v = make<std::vector<int> >(5);
std::priority_queue<int, std::vector<int>, std::greater<int> > q(std::greater<int>(), v);
assert(q.size() == 5);
assert(q.top() == 0);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// explicit priority_queue(const Compare& comp, container_type&& c);
#include <queue>
#include <cassert>
#include "../../../../MoveOnly.h"
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class C>
C
make(int n)
{
C c;
for (int i = 0; i < n; ++i)
c.push_back(MoveOnly(i));
return c;
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
int main()
{
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
std::priority_queue<MoveOnly> q(std::less<MoveOnly>(), make<std::vector<MoveOnly> >(5));
assert(q.size() == 5);
assert(q.top() == MoveOnly(4));
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue(const priority_queue&) = default;
#include <queue>
#include <cassert>
template <class C>
C
make(int n)
{
C c;
for (int i = 0; i < n; ++i)
c.push_back(i);
return c;
}
int main()
{
std::vector<int> v = make<std::vector<int> >(5);
std::priority_queue<int, std::vector<int>, std::greater<int> > qo(std::greater<int>(), v);
std::priority_queue<int, std::vector<int>, std::greater<int> > q = qo;
assert(q.size() == 5);
assert(q.top() == 0);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue();
#include <queue>
#include <cassert>
#include "../../../../stack_allocator.h"
int main()
{
std::priority_queue<int, std::vector<int, stack_allocator<int, 10> > > q;
assert(q.size() == 0);
q.push(1);
q.push(2);
assert(q.size() == 2);
assert(q.top() == 2);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// template <class InputIterator>
// priority_queue(InputIterator first, InputIterator last);
#include <queue>
#include <cassert>
int main()
{
int a[] = {3, 5, 2, 0, 6, 8, 1};
int* an = a + sizeof(a)/sizeof(a[0]);
std::priority_queue<int> q(a, an);
assert(q.size() == an - a);
assert(q.top() == 8);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// template <class InputIterator>
// priority_queue(InputIterator first, InputIterator last, const Compare& comp);
#include <queue>
#include <cassert>
int main()
{
int a[] = {3, 5, 2, 0, 6, 8, 1};
int* an = a + sizeof(a)/sizeof(a[0]);
std::priority_queue<int, std::vector<int>, std::greater<int> >
q(a, an, std::greater<int>());
assert(q.size() == an - a);
assert(q.top() == 0);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// template <class InputIterator>
// priority_queue(InputIterator first, InputIterator last,
// const Compare& comp, const container_type& c);
#include <queue>
#include <cassert>
int main()
{
int a[] = {3, 5, 2, 0, 6, 8, 1};
const int n = sizeof(a)/sizeof(a[0]);
std::vector<int> v(a, a+n/2);
std::priority_queue<int> q(a+n/2, a+n, std::less<int>(), v);
assert(q.size() == n);
assert(q.top() == 8);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// template <class InputIterator>
// priority_queue(InputIterator first, InputIterator last,
// const Compare& comp, container_type&& c);
#include <queue>
#include <cassert>
#include "../../../../MoveOnly.h"
int main()
{
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
int a[] = {3, 5, 2, 0, 6, 8, 1};
const int n = sizeof(a)/sizeof(a[0]);
std::priority_queue<MoveOnly> q(a+n/2, a+n,
std::less<MoveOnly>(),
std::vector<MoveOnly>(a, a+n/2));
assert(q.size() == n);
assert(q.top() == MoveOnly(8));
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue(priority_queue&& q);
#include <queue>
#include <cassert>
#include "../../../../MoveOnly.h"
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class C>
C
make(int n)
{
C c;
for (int i = 0; i < n; ++i)
c.push_back(MoveOnly(i));
return c;
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
int main()
{
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
std::priority_queue<MoveOnly> qo(std::less<MoveOnly>(), make<std::vector<MoveOnly> >(5));
std::priority_queue<MoveOnly> q = std::move(qo);
assert(q.size() == 5);
assert(q.top() == MoveOnly(4));
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue();
// template <class... Args> void emplace(Args&&... args);
#include <queue>
#include <cassert>
#include "../../../../Emplaceable.h"
int main()
{
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
std::priority_queue<Emplaceable> q;
q.emplace(1, 2.5);
assert(q.top() == Emplaceable(1, 2.5));
q.emplace(3, 4.5);
assert(q.top() == Emplaceable(3, 4.5));
q.emplace(2, 3.5);
assert(q.top() == Emplaceable(3, 4.5));
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue();
// bool empty() const;
#include <queue>
#include <cassert>
int main()
{
std::priority_queue<int> q;
assert(q.empty());
q.push(1);
assert(!q.empty());
q.pop();
assert(q.empty());
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue();
// void pop();
#include <queue>
#include <cassert>
int main()
{
std::priority_queue<int> q;
q.push(1);
assert(q.top() == 1);
q.push(3);
assert(q.top() == 3);
q.push(2);
assert(q.top() == 3);
q.pop();
assert(q.top() == 2);
q.pop();
assert(q.top() == 1);
q.pop();
assert(q.empty());
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue();
// void push(const value_type& v);
#include <queue>
#include <cassert>
int main()
{
std::priority_queue<int> q;
q.push(1);
assert(q.top() == 1);
q.push(3);
assert(q.top() == 3);
q.push(2);
assert(q.top() == 3);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue();
// void push(value_type&& v);
#include <queue>
#include <cassert>
#include "../../../../MoveOnly.h"
int main()
{
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
std::priority_queue<MoveOnly> q;
q.push(1);
assert(q.top() == 1);
q.push(3);
assert(q.top() == 3);
q.push(2);
assert(q.top() == 3);
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue();
// size_type size() const;
#include <queue>
#include <cassert>
int main()
{
std::priority_queue<int> q;
assert(q.size() == 0);
q.push(1);
assert(q.size() == 1);
q.pop();
assert(q.size() == 0);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue();
// void swap(priority_queue& q);
#include <queue>
#include <cassert>
int main()
{
std::priority_queue<int> q1;
std::priority_queue<int> q2;
q1.push(1);
q1.push(3);
q1.push(2);
q1.swap(q2);
assert(q1.empty());
assert(q2.size() == 3);
assert(q2.top() == 3);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue();
// const_reference top() const;
#include <queue>
#include <cassert>
int main()
{
std::priority_queue<int> q;
q.push(1);
assert(q.top() == 1);
q.push(3);
assert(q.top() == 3);
q.push(2);
assert(q.top() == 3);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// priority_queue();
// template <class T, class Container, class Compare>
// void swap(priority_queue<T, Container, Compare>& x,
// priority_queue<T, Container, Compare>& y);
#include <queue>
#include <cassert>
int main()
{
std::priority_queue<int> q1;
std::priority_queue<int> q2;
q1.push(1);
q1.push(3);
q1.push(2);
swap(q1, q2);
assert(q1.empty());
assert(q2.size() == 3);
assert(q2.top() == 3);
}

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <queue>
// template <class T, class Container = vector<T>,
// class Compare = less<typename Container::value_type>>
// class priority_queue
// {
// public:
// typedef Container container_type;
// typedef typename container_type::value_type value_type;
// typedef typename container_type::reference reference;
// typedef typename container_type::const_reference const_reference;
// typedef typename container_type::size_type size_type;
//
// protected:
// container_type c;
// Compare comp;
#include <queue>
#include <cassert>
#include <type_traits>
struct test
: private std::priority_queue<int>
{
test()
{
c.push_back(1);
assert(comp(1, 2));
}
};
struct C
{
typedef int value_type;
typedef int& reference;
typedef const int& const_reference;
typedef int size_type;
};
int main()
{
static_assert((std::is_same<std::priority_queue<int>::container_type, std::vector<int> >::value), "");
static_assert((std::is_same<std::priority_queue<double, std::deque<int> >::container_type, std::deque<int> >::value), "");
static_assert((std::is_same<std::priority_queue<double, std::deque<int> >::value_type, int>::value), "");
static_assert((std::is_same<std::priority_queue<int>::reference, std::vector<int>::reference>::value), "");
static_assert((std::is_same<std::priority_queue<int>::const_reference, std::vector<int>::const_reference>::value), "");
static_assert((std::is_same<std::priority_queue<int>::size_type, std::vector<int>::size_type>::value), "");
static_assert((std::uses_allocator<std::priority_queue<int>, std::allocator<int> >::value), "");
static_assert((!std::uses_allocator<std::priority_queue<int, C>, std::allocator<int> >::value), "");
test t;
}