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Core/Bitset: Add Read method and FromPointer static method

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This commit is contained in:
Lynix
2016-11-17 22:57:54 +01:00
parent 43a3f15794
commit d9774f30a3
3 changed files with 159 additions and 0 deletions
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6
include/Nazara/Core/Bitset.hpp
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@@ -24,6 +24,7 @@ namespace Nz
public:
class Bit;
using PointerSequence = std::pair<const void*, std::size_t>; //< Start pointer, bit offset
Bitset();
explicit Bitset(std::size_t bitCount, bool val);
@@ -49,6 +50,9 @@ namespace Nz
std::size_t GetCapacity() const;
std::size_t GetSize() const;
PointerSequence Read(const void* ptr, std::size_t bitCount);
PointerSequence Read(const PointerSequence& sequence, std::size_t bitCount);
void PerformsAND(const Bitset& a, const Bitset& b);
void PerformsNOT(const Bitset& a);
void PerformsOR(const Bitset& a, const Bitset& b);
@@ -107,6 +111,8 @@ namespace Nz
static constexpr std::size_t bitsPerBlock = std::numeric_limits<Block>::digits;
static constexpr std::size_t npos = std::numeric_limits<std::size_t>::max();
static Bitset FromPointer(const void* ptr, std::size_t bitCount, PointerSequence* sequence = nullptr);
private:
std::size_t FindFirstFrom(std::size_t blockIndex) const;
Block GetLastBlockMask() const;