8226d0b7c5
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@171479 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
1.3 KiB
C++
37 lines
1.3 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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// <algorithm>
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// template<InputIterator Iter, Predicate<auto, Iter::value_type> Pred>
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// requires CopyConstructible<Pred>
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// Iter::difference_type
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// count_if(Iter first, Iter last, Pred pred);
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#include <algorithm>
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#include <functional>
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#include <cassert>
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#include "../../../iterators.h"
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int main()
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{
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int ia[] = {0, 1, 2, 2, 0, 1, 2, 3};
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const unsigned sa = sizeof(ia)/sizeof(ia[0]);
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assert(std::count_if(input_iterator<const int*>(ia),
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input_iterator<const int*>(ia + sa),
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std::bind2nd(std::equal_to<int>(),2)) == 3);
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assert(std::count_if(input_iterator<const int*>(ia),
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input_iterator<const int*>(ia + sa),
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std::bind2nd(std::equal_to<int>(),7)) == 0);
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assert(std::count_if(input_iterator<const int*>(ia),
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input_iterator<const int*>(ia),
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std::bind2nd(std::equal_to<int>(),2)) == 0);
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}
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