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author | ReinUsesLisp <reinuseslisp@airmail.cc> | 2021-01-15 08:05:22 +0100 |
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committer | ReinUsesLisp <reinuseslisp@airmail.cc> | 2021-01-15 08:13:39 +0100 |
commit | 89c15dd115d136bbfc20aeddef87ed2d87972e77 (patch) | |
tree | 93288eb6d067963311fdb5cd79bdf93f7c46642f /src | |
parent | common/alignment: Rename AlignBits to AlignUpLog2 (diff) | |
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Diffstat (limited to 'src')
-rw-r--r-- | src/common/alignment.h | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/src/common/alignment.h b/src/common/alignment.h index 2127dc186..fb81f10d8 100644 --- a/src/common/alignment.h +++ b/src/common/alignment.h @@ -9,8 +9,7 @@ namespace Common { template <typename T> -[[nodiscard]] constexpr T AlignUp(T value, std::size_t size) { - static_assert(std::is_unsigned_v<T>, "T must be an unsigned value."); +requires std::is_unsigned_v<T>[[nodiscard]] constexpr T AlignUp(T value, size_t size) { auto mod{static_cast<T>(value % size)}; value -= mod; return static_cast<T>(mod == T{0} ? value : value + size); @@ -22,36 +21,33 @@ requires std::is_unsigned_v<T>[[nodiscard]] constexpr T AlignUpLog2(T value, siz } template <typename T> -[[nodiscard]] constexpr T AlignDown(T value, std::size_t size) { - static_assert(std::is_unsigned_v<T>, "T must be an unsigned value."); +requires std::is_unsigned_v<T>[[nodiscard]] constexpr T AlignDown(T value, size_t size) { return static_cast<T>(value - value % size); } template <typename T> -[[nodiscard]] constexpr bool Is4KBAligned(T value) { - static_assert(std::is_unsigned_v<T>, "T must be an unsigned value."); +requires std::is_unsigned_v<T>[[nodiscard]] constexpr bool Is4KBAligned(T value) { return (value & 0xFFF) == 0; } template <typename T> -[[nodiscard]] constexpr bool IsWordAligned(T value) { - static_assert(std::is_unsigned_v<T>, "T must be an unsigned value."); +requires std::is_unsigned_v<T>[[nodiscard]] constexpr bool IsWordAligned(T value) { return (value & 0b11) == 0; } template <typename T> -[[nodiscard]] constexpr bool IsAligned(T value, std::size_t alignment) { - using U = typename std::make_unsigned<T>::type; +requires std::is_integral_v<T>[[nodiscard]] constexpr bool IsAligned(T value, size_t alignment) { + using U = typename std::make_unsigned_t<T>; const U mask = static_cast<U>(alignment - 1); return (value & mask) == 0; } -template <typename T, std::size_t Align = 16> +template <typename T, size_t Align = 16> class AlignmentAllocator { public: using value_type = T; - using size_type = std::size_t; - using difference_type = std::ptrdiff_t; + using size_type = size_t; + using difference_type = ptrdiff_t; using propagate_on_container_copy_assignment = std::true_type; using propagate_on_container_move_assignment = std::true_type; |