Botan 3.9.0
Crypto and TLS for C&
cpuid_features.h
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1/**
2* (C) 2025 Jack Lloyd
3*
4* Botan is released under the Simplified BSD License (see license.txt)
5*/
6
7#ifndef BOTAN_CPUID_FEATURES_H_
8#define BOTAN_CPUID_FEATURES_H_
9
10#include <botan/api.h>
11#include <cstdint>
12#include <optional>
13#include <string>
14#include <string_view>
15
16namespace Botan {
17
19 public:
20 enum Bit : uint32_t {
21 SCALAR_AES = (1U << 0),
22 SCALAR_SHA256 = (1U << 1),
23 SCALAR_SM3 = (1U << 2),
24 SCALAR_SM4 = (1U << 3),
25
26 VECTOR = (1 << 16),
27 VECTOR_AES = (1U << 17),
28 VECTOR_SHA256 = (1U << 18),
29 VECTOR_SM3 = (1U << 19),
30 VECTOR_SM4 = (1U << 20),
31 };
32
33 CPUFeature(Bit b) : m_bit(b) {}
34
35 uint32_t as_u32() const { return static_cast<uint32_t>(m_bit); }
36
37 std::string to_string() const;
38
39 static std::optional<CPUFeature> from_string(std::string_view s);
40
41 private:
42 Bit m_bit;
43};
44
45} // namespace Botan
46
47#endif
#define BOTAN_TEST_API
Definition api.h:41
uint32_t as_u32() const
static std::optional< CPUFeature > from_string(std::string_view s)
std::string to_string() const