nfx-cpu 0.1.3
Cross-platform C++ CPU feature detection and system identification library
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FeatureDetection.h
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1/*
2 * MIT License
3 *
4 * Copyright (c) 2025 nfx
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
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10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
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13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
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16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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23 */
24
31
32#pragma once
33
34namespace nfx::cpu
35{
36 //=====================================================================
37 // CPU feature detection
38 //=====================================================================
39
40 //----------------------------------------------
41 // SSE4.2 Detection
42 //----------------------------------------------
43
52 [[nodiscard]] inline bool hasSse42Support() noexcept;
53
54 //----------------------------------------------
55 // AVX Detection
56 //----------------------------------------------
57
70 [[nodiscard]] inline bool hasAvxSupport() noexcept;
71
72 //----------------------------------------------
73 // AVX2 Detection
74 //----------------------------------------------
75
89 [[nodiscard]] inline bool hasAvx2Support() noexcept;
90
91 //----------------------------------------------
92 // Compile-time verification helpers
93 //----------------------------------------------
94
102 [[nodiscard]] inline bool verifySse42Support() noexcept;
103
111 [[nodiscard]] inline bool verifyAvxSupport() noexcept;
112
120 [[nodiscard]] inline bool verifyAvx2Support() noexcept;
121} // namespace nfx::cpu
122
123#include "nfx/detail/cpu/FeatureDetection.inl"
bool hasAvx2Support() noexcept
Gets the cached AVX2 support status.
bool hasAvxSupport() noexcept
Gets the cached AVX support status.
bool verifySse42Support() noexcept
Verifies that compile-time flags match runtime capabilities for SSE4.2.
bool verifyAvxSupport() noexcept
Verifies that compile-time flags match runtime capabilities for AVX.
bool verifyAvx2Support() noexcept
Verifies that compile-time flags match runtime capabilities for AVX2.
bool hasSse42Support() noexcept
Gets the cached SSE4.2 support status.