summaryrefslogtreecommitdiffstats
path: root/src/common/alignment.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/common/alignment.h')
-rw-r--r--src/common/alignment.h28
1 files changed, 20 insertions, 8 deletions
diff --git a/src/common/alignment.h b/src/common/alignment.h
index 32d796ffa..8570c7d3c 100644
--- a/src/common/alignment.h
+++ b/src/common/alignment.h
@@ -9,41 +9,48 @@
namespace Common {
template <typename T>
-requires std::is_unsigned_v<T>[[nodiscard]] constexpr T AlignUp(T value, size_t size) {
+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);
}
template <typename T>
-requires std::is_unsigned_v<T>[[nodiscard]] constexpr T AlignUpLog2(T value, size_t align_log2) {
+requires std::is_unsigned_v<T>
+[[nodiscard]] constexpr T AlignUpLog2(T value, size_t align_log2) {
return static_cast<T>((value + ((1ULL << align_log2) - 1)) >> align_log2 << align_log2);
}
template <typename T>
-requires std::is_unsigned_v<T>[[nodiscard]] constexpr T AlignDown(T value, size_t size) {
+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>
-requires std::is_unsigned_v<T>[[nodiscard]] constexpr bool Is4KBAligned(T value) {
+requires std::is_unsigned_v<T>
+[[nodiscard]] constexpr bool Is4KBAligned(T value) {
return (value & 0xFFF) == 0;
}
template <typename T>
-requires std::is_unsigned_v<T>[[nodiscard]] constexpr bool IsWordAligned(T value) {
+requires std::is_unsigned_v<T>
+[[nodiscard]] constexpr bool IsWordAligned(T value) {
return (value & 0b11) == 0;
}
template <typename T>
-requires std::is_integral_v<T>[[nodiscard]] constexpr bool IsAligned(T value, size_t alignment) {
+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, typename U>
-requires std::is_integral_v<T>[[nodiscard]] constexpr T DivideUp(T x, U y) {
+requires std::is_integral_v<T>
+[[nodiscard]] constexpr T DivideUp(T x, U y) {
return (x + (y - 1)) / y;
}
@@ -57,7 +64,7 @@ public:
using propagate_on_container_copy_assignment = std::true_type;
using propagate_on_container_move_assignment = std::true_type;
using propagate_on_container_swap = std::true_type;
- using is_always_equal = std::true_type;
+ using is_always_equal = std::false_type;
constexpr AlignmentAllocator() noexcept = default;
@@ -76,6 +83,11 @@ public:
struct rebind {
using other = AlignmentAllocator<T2, Align>;
};
+
+ template <typename T2, size_t Align2>
+ constexpr bool operator==(const AlignmentAllocator<T2, Align2>&) const noexcept {
+ return std::is_same_v<T, T2> && Align == Align2;
+ }
};
} // namespace Common