You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
118 lines
3.6 KiB
C++
118 lines
3.6 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <numeric>
|
|
|
|
// template <InputIterator InIter,
|
|
// OutputIterator<auto, const InIter::value_type&> OutIter>
|
|
// requires HasMinus<InIter::value_type, InIter::value_type>
|
|
// && Constructible<InIter::value_type, InIter::reference>
|
|
// && OutputIterator<OutIter,
|
|
// HasMinus<InIter::value_type, InIter::value_type>::result_type>
|
|
// && MoveAssignable<InIter::value_type>
|
|
// OutIter
|
|
// adjacent_difference(InIter first, InIter last, OutIter result);
|
|
|
|
#include <numeric>
|
|
#include <cassert>
|
|
|
|
#include "test_macros.h"
|
|
#include "test_iterators.h"
|
|
|
|
template <class InIter, class OutIter>
|
|
void
|
|
test()
|
|
{
|
|
int ia[] = {15, 10, 6, 3, 1};
|
|
int ir[] = {15, -5, -4, -3, -2};
|
|
const unsigned s = sizeof(ia) / sizeof(ia[0]);
|
|
int ib[s] = {0};
|
|
OutIter r = std::adjacent_difference(InIter(ia), InIter(ia+s), OutIter(ib));
|
|
assert(base(r) == ib + s);
|
|
for (unsigned i = 0; i < s; ++i)
|
|
assert(ib[i] == ir[i]);
|
|
}
|
|
|
|
#if TEST_STD_VER >= 11
|
|
|
|
class Y;
|
|
|
|
class X
|
|
{
|
|
int i_;
|
|
|
|
X& operator=(const X&);
|
|
public:
|
|
explicit X(int i) : i_(i) {}
|
|
X(const X& x) : i_(x.i_) {}
|
|
X& operator=(X&& x)
|
|
{
|
|
i_ = x.i_;
|
|
x.i_ = -1;
|
|
return *this;
|
|
}
|
|
|
|
friend X operator-(const X& x, const X& y) {return X(x.i_ - y.i_);}
|
|
|
|
friend class Y;
|
|
};
|
|
|
|
class Y
|
|
{
|
|
int i_;
|
|
|
|
Y& operator=(const Y&);
|
|
public:
|
|
explicit Y(int i) : i_(i) {}
|
|
Y(const Y& y) : i_(y.i_) {}
|
|
void operator=(const X& x) {i_ = x.i_;}
|
|
};
|
|
|
|
#endif
|
|
|
|
int main(int, char**)
|
|
{
|
|
test<input_iterator<const int*>, output_iterator<int*> >();
|
|
test<input_iterator<const int*>, forward_iterator<int*> >();
|
|
test<input_iterator<const int*>, bidirectional_iterator<int*> >();
|
|
test<input_iterator<const int*>, random_access_iterator<int*> >();
|
|
test<input_iterator<const int*>, int*>();
|
|
|
|
test<forward_iterator<const int*>, output_iterator<int*> >();
|
|
test<forward_iterator<const int*>, forward_iterator<int*> >();
|
|
test<forward_iterator<const int*>, bidirectional_iterator<int*> >();
|
|
test<forward_iterator<const int*>, random_access_iterator<int*> >();
|
|
test<forward_iterator<const int*>, int*>();
|
|
|
|
test<bidirectional_iterator<const int*>, output_iterator<int*> >();
|
|
test<bidirectional_iterator<const int*>, forward_iterator<int*> >();
|
|
test<bidirectional_iterator<const int*>, bidirectional_iterator<int*> >();
|
|
test<bidirectional_iterator<const int*>, random_access_iterator<int*> >();
|
|
test<bidirectional_iterator<const int*>, int*>();
|
|
|
|
test<random_access_iterator<const int*>, output_iterator<int*> >();
|
|
test<random_access_iterator<const int*>, forward_iterator<int*> >();
|
|
test<random_access_iterator<const int*>, bidirectional_iterator<int*> >();
|
|
test<random_access_iterator<const int*>, random_access_iterator<int*> >();
|
|
test<random_access_iterator<const int*>, int*>();
|
|
|
|
test<const int*, output_iterator<int*> >();
|
|
test<const int*, forward_iterator<int*> >();
|
|
test<const int*, bidirectional_iterator<int*> >();
|
|
test<const int*, random_access_iterator<int*> >();
|
|
test<const int*, int*>();
|
|
|
|
#if TEST_STD_VER >= 11
|
|
X x[3] = {X(1), X(2), X(3)};
|
|
Y y[3] = {Y(1), Y(2), Y(3)};
|
|
std::adjacent_difference(x, x+3, y);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|