Language Support

Modules
	Type Support

Functions
void	omw::shiftLeftAssign (int8_t &value, unsigned int n)
void	omw::shiftLeftAssign (int16_t &value, unsigned int n)
void	omw::shiftLeftAssign (int32_t &value, unsigned int n)
void	omw::shiftLeftAssign (int64_t &value, unsigned int n)
void	omw::shiftLeftAssign (uint8_t &value, unsigned int n)
void	omw::shiftLeftAssign (uint16_t &value, unsigned int n)
void	omw::shiftLeftAssign (uint32_t &value, unsigned int n)
void	omw::shiftLeftAssign (uint64_t &value, unsigned int n)
void	omw::shiftRightAssign (int8_t &value, unsigned int n)
void	omw::shiftRightAssign (int16_t &value, unsigned int n)
void	omw::shiftRightAssign (int32_t &value, unsigned int n)
void	omw::shiftRightAssign (int64_t &value, unsigned int n)
void	omw::shiftRightAssign (uint8_t &value, unsigned int n)
void	omw::shiftRightAssign (uint16_t &value, unsigned int n)
void	omw::shiftRightAssign (uint32_t &value, unsigned int n)
void	omw::shiftRightAssign (uint64_t &value, unsigned int n)
int8_t	omw::shiftLeft (int8_t value, unsigned int n)
int16_t	omw::shiftLeft (int16_t value, unsigned int n)
int32_t	omw::shiftLeft (int32_t value, unsigned int n)
int64_t	omw::shiftLeft (int64_t value, unsigned int n)
uint8_t	omw::shiftLeft (uint8_t value, unsigned int n)
uint16_t	omw::shiftLeft (uint16_t value, unsigned int n)
uint32_t	omw::shiftLeft (uint32_t value, unsigned int n)
uint64_t	omw::shiftLeft (uint64_t value, unsigned int n)
int8_t	omw::shiftRight (int8_t value, unsigned int n)
int16_t	omw::shiftRight (int16_t value, unsigned int n)
int32_t	omw::shiftRight (int32_t value, unsigned int n)
int64_t	omw::shiftRight (int64_t value, unsigned int n)
uint8_t	omw::shiftRight (uint8_t value, unsigned int n)
uint16_t	omw::shiftRight (uint16_t value, unsigned int n)
uint32_t	omw::shiftRight (uint32_t value, unsigned int n)
uint64_t	omw::shiftRight (uint64_t value, unsigned int n)

Detailed Description

#include <omw/utility.h>

Classes and functions that interact closely with the language.

Bitwise Shift Operators

Until C++20 the left shift of negative signed values is undefined and the right shift of negative signed values is implementation-defined. The functions omw::shiftLeft(), omw::shiftRight(), omw::shiftLeftAssign(), omw::shiftRightAssign() and the shift operators of omw::int128_t and omw::uint128_t implement C++20 compliant shift operations.

If the number of shifts to be performed is greater than or equal to the number of bits of the values type, the result is 0 (or -1 if the operation was right shift of a signed type and the value was negative before the operation).

See also Bitwise shift operators at cppreference.com.

Function Documentation

shiftLeft()

int32_t omw::shiftLeft	(	int32_t	value,
		unsigned int	n
	)

See Bitwise Shift Operators in Language Support.

shiftLeftAssign()

void omw::shiftLeftAssign	(	int32_t &	value,
		unsigned int	n
	)

See Bitwise Shift Operators in Language Support.

shiftRight()

int32_t omw::shiftRight	(	int32_t	value,
		unsigned int	n
	)

See Bitwise Shift Operators in Language Support.

shiftRightAssign()

void omw::shiftRightAssign	(	int32_t &	value,
		unsigned int	n
	)

See Bitwise Shift Operators in Language Support.