f5256e16df
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103516 91177308-0d34-0410-b5e6-96231b3b80d8
86 lines
3.5 KiB
C++
86 lines
3.5 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 distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <numeric>
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// template <InputIterator Iter1, InputIterator Iter2, MoveConstructible T,
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// class BinaryOperation1,
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// Callable<auto, Iter1::reference, Iter2::reference> BinaryOperation2>
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// requires Callable<BinaryOperation1, const T&, BinaryOperation2::result_type>
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// && HasAssign<T, BinaryOperation1::result_type>
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// && CopyConstructible<BinaryOperation1>
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// && CopyConstructible<BinaryOperation2>
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// T
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// inner_product(Iter1 first1, Iter1 last1, Iter2 first2,
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// T init, BinaryOperation1 binary_op1, BinaryOperation2 binary_op2);
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#include <numeric>
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#include <functional>
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#include <cassert>
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#include "../iterators.h"
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template <class Iter1, class Iter2, class T>
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void
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test(Iter1 first1, Iter1 last1, Iter2 first2, T init, T x)
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{
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assert(std::inner_product(first1, last1, first2, init,
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std::multiplies<int>(), std::plus<int>()) == x);
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}
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template <class Iter1, class Iter2>
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void
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test()
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{
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int a[] = {1, 2, 3, 4, 5, 6};
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int b[] = {6, 5, 4, 3, 2, 1};
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unsigned sa = sizeof(a) / sizeof(a[0]);
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test(Iter1(a), Iter1(a), Iter2(b), 1, 1);
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test(Iter1(a), Iter1(a), Iter2(b), 10, 10);
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test(Iter1(a), Iter1(a+1), Iter2(b), 1, 7);
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test(Iter1(a), Iter1(a+1), Iter2(b), 10, 70);
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test(Iter1(a), Iter1(a+2), Iter2(b), 1, 49);
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test(Iter1(a), Iter1(a+2), Iter2(b), 10, 490);
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test(Iter1(a), Iter1(a+sa), Iter2(b), 1, 117649);
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test(Iter1(a), Iter1(a+sa), Iter2(b), 10, 1176490);
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}
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int main()
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{
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test<input_iterator<const int*>, input_iterator<const int*> >();
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test<input_iterator<const int*>, forward_iterator<const int*> >();
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test<input_iterator<const int*>, bidirectional_iterator<const int*> >();
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test<input_iterator<const int*>, random_access_iterator<const int*> >();
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test<input_iterator<const int*>, const int*>();
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test<forward_iterator<const int*>, input_iterator<const int*> >();
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test<forward_iterator<const int*>, forward_iterator<const int*> >();
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test<forward_iterator<const int*>, bidirectional_iterator<const int*> >();
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test<forward_iterator<const int*>, random_access_iterator<const int*> >();
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test<forward_iterator<const int*>, const int*>();
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test<bidirectional_iterator<const int*>, input_iterator<const int*> >();
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test<bidirectional_iterator<const int*>, forward_iterator<const int*> >();
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test<bidirectional_iterator<const int*>, bidirectional_iterator<const int*> >();
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test<bidirectional_iterator<const int*>, random_access_iterator<const int*> >();
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test<bidirectional_iterator<const int*>, const int*>();
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test<random_access_iterator<const int*>, input_iterator<const int*> >();
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test<random_access_iterator<const int*>, forward_iterator<const int*> >();
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test<random_access_iterator<const int*>, bidirectional_iterator<const int*> >();
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test<random_access_iterator<const int*>, random_access_iterator<const int*> >();
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test<random_access_iterator<const int*>, const int*>();
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test<const int*, input_iterator<const int*> >();
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test<const int*, forward_iterator<const int*> >();
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test<const int*, bidirectional_iterator<const int*> >();
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test<const int*, random_access_iterator<const int*> >();
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test<const int*, const int*>();
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}
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