91 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			91 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			C++
		
	
	
	
| //===----------------------------------------------------------------------===//
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| //
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| //                     The LLVM Compiler Infrastructure
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| //
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| // This file is dual licensed under the MIT and the University of Illinois Open
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| // Source Licenses. See LICENSE.TXT for details.
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| //
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| //===----------------------------------------------------------------------===//
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| 
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| // <algorithm>
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| 
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| // template<InputIterator InIter, OutputIterator<auto, InIter::reference> OutIter>
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| //   constexpr OutIter   // constexpr after C++17
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| //   copy(InIter first, InIter last, OutIter result);
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| 
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| #include <algorithm>
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| #include <cassert>
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| 
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| #include "test_macros.h"
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| #include "test_iterators.h"
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| 
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| // #if TEST_STD_VER > 17
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| // TEST_CONSTEXPR bool test_constexpr() {
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| //     int ia[] = {1, 2, 3, 4, 5};
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| //     int ic[] = {6, 6, 6, 6, 6, 6, 6};
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| //
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| // 	auto p = std::copy(std::begin(ia), std::end(ia), std::begin(ic));
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| // 	return std::equal(std::begin(ia), std::end(ia), std::begin(ic), p)
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| // 	    && std::all_of(p, std::end(ic), [](int a){return a == 6;})
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| // 	    ;
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| //     }
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| // #endif
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| 
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| template <class InIter, class OutIter>
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| void
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| test()
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| {
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|     const unsigned N = 1000;
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|     int ia[N];
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|     for (unsigned i = 0; i < N; ++i)
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|         ia[i] = i;
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|     int ib[N] = {0};
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| 
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|     OutIter r = std::copy(InIter(ia), InIter(ia+N), OutIter(ib));
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|     assert(base(r) == ib+N);
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|     for (unsigned i = 0; i < N; ++i)
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|         assert(ia[i] == ib[i]);
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| }
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| 
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| int main()
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| {
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|     test<input_iterator<const int*>, output_iterator<int*> >();
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|     test<input_iterator<const int*>, input_iterator<int*> >();
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|     test<input_iterator<const int*>, forward_iterator<int*> >();
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|     test<input_iterator<const int*>, bidirectional_iterator<int*> >();
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|     test<input_iterator<const int*>, random_access_iterator<int*> >();
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|     test<input_iterator<const int*>, int*>();
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| 
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|     test<forward_iterator<const int*>, output_iterator<int*> >();
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|     test<forward_iterator<const int*>, input_iterator<int*> >();
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|     test<forward_iterator<const int*>, forward_iterator<int*> >();
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|     test<forward_iterator<const int*>, bidirectional_iterator<int*> >();
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|     test<forward_iterator<const int*>, random_access_iterator<int*> >();
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|     test<forward_iterator<const int*>, int*>();
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| 
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|     test<bidirectional_iterator<const int*>, output_iterator<int*> >();
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|     test<bidirectional_iterator<const int*>, input_iterator<int*> >();
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|     test<bidirectional_iterator<const int*>, forward_iterator<int*> >();
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|     test<bidirectional_iterator<const int*>, bidirectional_iterator<int*> >();
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|     test<bidirectional_iterator<const int*>, random_access_iterator<int*> >();
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|     test<bidirectional_iterator<const int*>, int*>();
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| 
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|     test<random_access_iterator<const int*>, output_iterator<int*> >();
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|     test<random_access_iterator<const int*>, input_iterator<int*> >();
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|     test<random_access_iterator<const int*>, forward_iterator<int*> >();
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|     test<random_access_iterator<const int*>, bidirectional_iterator<int*> >();
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|     test<random_access_iterator<const int*>, random_access_iterator<int*> >();
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|     test<random_access_iterator<const int*>, int*>();
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| 
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|     test<const int*, output_iterator<int*> >();
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|     test<const int*, input_iterator<int*> >();
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|     test<const int*, forward_iterator<int*> >();
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|     test<const int*, bidirectional_iterator<int*> >();
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|     test<const int*, random_access_iterator<int*> >();
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|     test<const int*, int*>();
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| 
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| // #if TEST_STD_VER > 17
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| //     static_assert(test_constexpr());
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| // #endif
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| }
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