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common: slot_vector: added `is_allocated` to check if the slot already exists

This commit is contained in:
psucien 2024-06-25 09:43:25 +02:00
parent 8475a62a46
commit acc4ef7b4c
1 changed files with 5 additions and 1 deletions
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6
src/common/slot_vector.h
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@ -54,6 +54,10 @@ public:
return values[id.index].object; return values[id.index].object;
} }
bool is_allocated(SlotId id) const {
return ReadStorageBit(id.index);
}
template <typename... Args> template <typename... Args>
[[nodiscard]] SlotId insert(Args&&... args) noexcept { [[nodiscard]] SlotId insert(Args&&... args) noexcept {
const u32 index = FreeValueIndex(); const u32 index = FreeValueIndex();
@ -107,7 +111,7 @@ private:
stored_bitset[index / 64] &= ~(u64(1) << (index % 64)); stored_bitset[index / 64] &= ~(u64(1) << (index % 64));
} }
bool ReadStorageBit(u32 index) noexcept { bool ReadStorageBit(u32 index) const noexcept {
return ((stored_bitset[index / 64] >> (index % 64)) & 1) != 0; return ((stored_bitset[index / 64] >> (index % 64)) & 1) != 0;
} }