mirror of
https://github.com/RGBCube/serenity
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4296425bd8
C++20 can automatically synthesize `operator!=` from `operator==`, so there is no point in writing such functions by hand if all they do is call through to `operator==`. This fixes a compile error with compilers that implement P2468 (Clang 16 currently). This paper restores the C++17 behavior that if both `T::operator==(U)` and `T::operator!=(U)` exist, `U == T` won't be rewritten in reverse to call `T::operator==(U)`. Removing `!=` operators makes the rewriting possible again. See https://reviews.llvm.org/D134529#3853062
50 lines
879 B
C++
50 lines
879 B
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/String.h>
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#include <AK/Types.h>
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#include <AK/URL.h>
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namespace Spreadsheet {
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class Sheet;
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struct Position {
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Position() = default;
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Position(size_t column, size_t row)
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: column(column)
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, row(row)
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, m_hash(pair_int_hash(column, row))
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{
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}
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ALWAYS_INLINE u32 hash() const
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{
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if (m_hash == 0)
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return m_hash = int_hash(column * 65537 + row);
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return m_hash;
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}
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bool operator==(Position const& other) const
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{
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return row == other.row && column == other.column;
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}
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String to_cell_identifier(Sheet const& sheet) const;
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URL to_url(Sheet const& sheet) const;
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size_t column { 0 };
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size_t row { 0 };
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private:
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mutable u32 m_hash { 0 };
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};
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}
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