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removed 128 bit int

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Orange
2026-01-04 22:46:09 +03:00
parent 0846022f8a
commit 3f940c8e35
1 changed files with 3 additions and 5 deletions
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8
include/omath/containers/encrypted_variable.hpp
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@@ -59,13 +59,10 @@ namespace omath::detail
return splitmix64(base_seed() + 0xD1B54A32D192ED03ull * (Stream + 1)); return splitmix64(base_seed() + 0xD1B54A32D192ED03ull * (Stream + 1));
} }
// Unbiased bounded uniform using Lemire's method (uses 128-bit multiply)
[[nodiscard]] [[nodiscard]]
consteval std::uint64_t bounded_u64(const std::uint64_t x, const std::uint64_t bound) consteval std::uint64_t bounded_u64(const std::uint64_t x, const std::uint64_t bound)
{ {
// bound must be > 0 return (x * bound) >> 64;
__uint128_t m = static_cast<__uint128_t>(x) * static_cast<__uint128_t>(bound);
return static_cast<std::uint64_t>(m >> 64);
} }
template<std::int64_t Lo, std::int64_t Hi, std::uint64_t Stream> template<std::int64_t Lo, std::int64_t Hi, std::uint64_t Stream>
@@ -97,7 +94,7 @@ namespace omath::detail
} }
template<std::size_t N, std::uint64_t Seed> template<std::size_t N, std::uint64_t Seed>
[[nodiscard]] [[nodiscard]]
consteval std::array<std::uint8_t, N> make_array() consteval std::array<std::uint8_t, N> make_array()
{ {
return make_array_impl<N, Seed>(std::make_index_sequence<N>{}); return make_array_impl<N, Seed>(std::make_index_sequence<N>{});
@@ -122,6 +119,7 @@ namespace omath
bytes[i] ^= static_cast<std::uint8_t>(key[i % key.size()] + (i * key_size)); bytes[i] ^= static_cast<std::uint8_t>(key[i % key.size()] + (i * key_size));
m_is_encrypted = true; m_is_encrypted = true;
} }
public: public:
OMATH_FORCEINLINE constexpr explicit EncryptedVariable(const T& data): m_is_encrypted(false), m_data(data) OMATH_FORCEINLINE constexpr explicit EncryptedVariable(const T& data): m_is_encrypted(false), m_data(data)
{ {