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35 lines
942 B
C++
35 lines
942 B
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 DEFAULTONLY_H
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#define DEFAULTONLY_H
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#include <cassert>
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class DefaultOnly
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{
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int data_;
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DefaultOnly(const DefaultOnly&);
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DefaultOnly& operator=(const DefaultOnly&);
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public:
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static int count;
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DefaultOnly() : data_(-1) {++count;}
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~DefaultOnly() {data_ = 0; --count;}
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friend bool operator==(const DefaultOnly& x, const DefaultOnly& y)
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{return x.data_ == y.data_;}
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friend bool operator< (const DefaultOnly& x, const DefaultOnly& y)
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{return x.data_ < y.data_;}
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};
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int DefaultOnly::count = 0;
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#endif // DEFAULTONLY_H
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