integerOps.h File Reference

#include <cassert>
#include <limits>
#include <boost/static_assert.hpp>
#include <boost/optional.hpp>

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Classes
struct	IntegerOpsPrivate::NumBits< T >
struct	IntegerOpsPrivate::SHL1Helper< T, Count, TooBig >
struct	IntegerOpsPrivate::SHL1Helper< T, Count, true >
struct	IntegerOpsPrivate::SHL1Helper< T, Count, false >
struct	IntegerOps::SHL1< T, n >
	Bitmask constant with bit n set. More...
struct	IntegerOps::GenMask< T, n >
	Bit mask constant with bits 0 through n-1 set. More...

Namespaces
	IntegerOpsPrivate
	IntegerOps
	Bit-wise operations on integers.

Constant Groups
	IntegerOpsPrivate
	IntegerOps
	Bit-wise operations on integers.

Functions
template<typename T >
T	IntegerOps::shl1 (size_t n)
	Bitmask with bit n set. More...
template<typename T >
T	IntegerOps::genMask (size_t n)
	Bitmask with bits 0 through N-1 set. More...
template<typename T >
T	IntegerOps::genMask (size_t lobit, size_t hibit)
	Generate a bitmask. More...
template<typename T >
bool	IntegerOps::isPowerOfTwo (T value)
	Returns true if the value is a power of two. More...
template<typename T >
T	IntegerOps::log2max (T value)
	Returns the base-2 logorithm of value. More...
template<typename T >
T	IntegerOps::log2 (T a)
template<typename T >
bool	IntegerOps::bitmask_subset (T m1, T m2)
	Determines if one bitmask is a subset of another. More...
template<typename T >
size_t	IntegerOps::countSet (T val)
	Counts how many bits are set (one). More...
template<typename T >
size_t	IntegerOps::countClear (T val)
	Counts how many bits are clear (zero). More...
template<typename T >
boost::optional< size_t >	IntegerOps::msb_set (T val)
	Optionally returns the zero-origin position of the most significant set bit. More...
template<size_t NBits, typename T >
bool	IntegerOps::signBit (T value)
	Returns true if the sign bit is set, false if clear. More...
template<typename T >
bool	IntegerOps::signBit2 (T value, size_t width=8 *sizeof(T))
	Returns true if the sign bit is set, false if clear. More...
template<size_t FromBits, size_t ToBits, typename T >
T	IntegerOps::signExtend (T value)
	Sign extend value. More...
template<typename T >
T	IntegerOps::signExtend2 (T value, size_t from_width, size_t to_width)
	Sign extend value. More...
template<size_t NBits, typename T >
T	IntegerOps::shiftLeft (T value, size_t count)
	Shifts bits of value left by count bits. More...
template<typename T >
T	IntegerOps::shiftLeft2 (T value, size_t count, size_t width=8 *sizeof(T))
	Shifts bits of value left by count bits. More...
template<size_t NBits, typename T >
T	IntegerOps::shiftRightLogical (T value, size_t count)
	Shifts bits of value right by count bits without sign extension. More...
template<typename T >
T	IntegerOps::shiftRightLogical2 (T value, size_t count, size_t width=8 *sizeof(T))
	Shifts bits of value right by count bits without sign extension. More...
template<size_t NBits, typename T >
T	IntegerOps::shiftRightArithmetic (T value, size_t count)
	Shifts bits of value right by count bits with sign extension. More...
template<typename T >
T	IntegerOps::shiftRightArithmetic2 (T value, size_t count, size_t width=8 *sizeof(T))
	Shifts bits of value right by count bits with sign extension. More...
template<size_t NBits, typename T >
T	IntegerOps::rotateLeft (T value, size_t count)
	Rotate the bits of the value left by count bits. More...
template<typename T >
T	IntegerOps::rotateLeft2 (T value, size_t count, size_t width=8 *sizeof(T))
	Rotate the bits of the value left by count bits. More...
template<size_t NBits, typename T >
T	IntegerOps::rotateRight (T value, size_t count)
	Rotate bits of the value right by count bits. More...
template<typename T >
T	IntegerOps::rotateRight2 (T value, size_t count, size_t width=8 *sizeof(T))
	Rotate bits of the value right by count bits. More...
template<size_t lobit, size_t hibit, typename T >
T	IntegerOps::shift_to (T value)
	Create a shifted value. More...
template<typename T >
T	IntegerOps::shift_to2 (size_t lobit, size_t hibit, T value)
	Create a shifted value. More...
template<size_t lobit, size_t hibit, typename T >
T	IntegerOps::extract (T bits)
	Extract bits from a value. More...
template<typename T >
T	IntegerOps::extract2 (size_t lobit, size_t hibit, T bits)
	Extract bits from a value. More...