f3dccc2215
We'd like to change the data layout of `interval` to save space. As a result, start() and end() which return references to data members must return objects (not references). Since we'd like to maintain zero-copy for these functions, we change them to return objects containing references (rather than references to objects), avoiding copying of potentially expensive objects. We repurpose the interval_bound class to hold references (by instantiating it with `const T&` instead of `T`) and provide converting constructors. To make transform_bounds() retain zero-copy, we add start() and end() that take *this by rvalue reference.
28 lines
548 B
C++
28 lines
548 B
C++
/*
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* Copyright 2016-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
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*/
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template<typename T>
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class interval_bound {
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T value();
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bool is_inclusive();
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};
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template<typename T>
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class wrapping_interval {
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std::optional<interval_bound<T>> start_copy();
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std::optional<interval_bound<T>> end_copy();
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bool is_singular();
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};
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template<typename T>
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class interval {
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std::optional<interval_bound<T>> start_copy();
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std::optional<interval_bound<T>> end_copy();
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bool is_singular();
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};
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