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7e9dc9c1fd
This necessitates marking bit_cast as ALWAYS_INLINE since emitting it as a function call there will create an unnecessary potential SSE registers -> plain registers/memory round-trip.
32 lines
522 B
C++
32 lines
522 B
C++
/*
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* Copyright (c) 2021, 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/Platform.h>
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namespace AK {
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template<typename T, typename U>
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[[nodiscard]] constexpr ALWAYS_INLINE T bit_cast(U const& a)
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{
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#if (__has_builtin(__builtin_bit_cast))
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return __builtin_bit_cast(T, a);
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#else
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static_assert(sizeof(T) == sizeof(U));
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T result;
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__builtin_memcpy(&result, &a, sizeof(T));
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return result;
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#endif
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}
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}
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#if USING_AK_GLOBALLY
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using AK::bit_cast;
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#endif
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