57b08b0944
to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351648
41 lines
1.4 KiB
C++
41 lines
1.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef INPUT_ITERATOR_H
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#define INPUT_ITERATOR_H
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#include <iterator>
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template <class It>
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class input_iterator
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{
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It it_;
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public:
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typedef typename std::input_iterator_tag iterator_category;
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typedef typename std::iterator_traits<It>::value_type value_type;
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typedef typename std::iterator_traits<It>::difference_type difference_type;
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typedef It pointer;
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typedef typename std::iterator_traits<It>::reference reference;
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input_iterator() : it_() {}
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explicit input_iterator(It it) : it_(it) {}
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reference operator*() const {return *it_;}
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pointer operator->() const {return it_;}
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input_iterator& operator++() {++it_; return *this;}
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input_iterator operator++(int) {input_iterator tmp(*this); ++(*this); return tmp;}
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friend bool operator==(const input_iterator& x, const input_iterator& y)
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{return x.it_ == y.it_;}
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friend bool operator!=(const input_iterator& x, const input_iterator& y)
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{return !(x == y);}
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};
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#endif // INPUT_ITERATOR_H
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