BitVector
Engine/source/core/bitVector.h
Manage a vector of bits of arbitrary size.
Size Management
Mutators
Note that bits are specified by index, unlike BitSet32.
Protected Attributes
Protected Static Functions
calcByteSize(const U32 numBits)
Returns a size in bytes which is 32bit aligned and can hold all the requested bits.
Protected Functions
Public Functions
Default constructor which creates an bit vector with a bit size of zero.
Destructor.
Detailed Description
Manage a vector of bits of arbitrary size.
Size Management
empty()
Return true if the bit vector is empty.
setSize(U32 sizeInBits)
Resizes the bit vector.
note:The new bits in the vector are not cleared and contain random garbage bits.
getSize()
Returns the size in bits.
getByteSize()
Returns the 32bit aligned size in bytes.
getBits()
Returns the bits.
getBits()
Mutators
Note that bits are specified by index, unlike BitSet32.
set(U32 bit)
Set the specified bit.
set(U32 bit, bool on)
Set the specified bit on or off.
set()
Set all the bits.
clear(U32 bit)
Clear the specified bit.
clear()
Clear all the bits.
combineOR(const BitVector & other)
Does an OR operation between BitVectors.
test(U32 bit)
Test that the specified bit is set.
testAny(const BitVector & vector)
Test this vector's bits against all the corresponding bits in vector and return true if any of the bits that are set in vector are also set in this vector.
Parameters:
| vector | Bit vector of the same size. |
testAll(const BitVector & vector)
Test this vector's bits against all the corresponding bits in vector and return true if all of the bits that are set in vector are also set in this vector.
Parameters:
| vector | Bit vector of the same size. |
testAll()
Return true if all bits are set.
testAllClear()
Return true if all bits are clear.
Protected Attributes
U8 * mBits
The array of bytes that stores our bits.
U32 mByteSize
The allocated size of the bit array.
U32 mSize
The size of the vector in bits.
Protected Static Functions
calcByteSize(const U32 numBits)
Returns a size in bytes which is 32bit aligned and can hold all the requested bits.
Protected Functions
_resize(U32 sizeInBits, bool copyBits)
Internal function which resizes the bit array.
_test(const BitVector & vector, bool all)
Public Functions
BitVector()
Default constructor which creates an bit vector with a bit size of zero.
BitVector(const BitVector & r)
Copy constructor.
BitVector(U32 sizeInBits)
Constructs a bit vector with the desired size.
note:The resulting vector is not cleared.
~BitVector()
Destructor.
copy(const BitVector & from)
Copy the content of another bit vector.
operator=(const BitVector & r)
Copy the contents of another bit vector.