Files
file	fixed_point.hpp
	Class definition for fixed point data type.

file	fixed_point.hpp
	Class definition for fixed point data type.

Classes
struct	numeric::scaled_integer< Rep, >
	Helper struct for constructing `fixed_point` when value is already shifted. More...

class	numeric::fixed_point< Rep, Rad >
	A type for representing a number with a fixed amount of precision. More...

Typedefs
using	numeric::decimal32 = fixed_point< int32_t, Radix::BASE_10 >
	32-bit decimal fixed point

using	numeric::decimal64 = fixed_point< int64_t, Radix::BASE_10 >
	64-bit decimal fixed point

using	numeric::decimal128 = fixed_point< __int128_t, Radix::BASE_10 >
	128-bit decimal fixed point

Enumerations
enum	numeric::scale_type : int32_t
	The scale type for fixed_point.

enum class	numeric::Radix : int32_t { BASE_2 = 2 , BASE_10 = 10 }
	Scoped enumerator to use when constructing `fixed_point` More...

Functions
template<typename T >
constexpr CUDF_HOST_DEVICE auto	numeric::is_supported_representation_type ()
	Returns `true` if the representation type is supported by `fixed_point` More...

template<typename Rep , typename T >
CUDF_HOST_DEVICE auto	numeric::addition_overflow (T lhs, T rhs)
	Function for identifying integer overflow when adding. More...

template<typename Rep , typename T >
CUDF_HOST_DEVICE auto	numeric::subtraction_overflow (T lhs, T rhs)
	Function for identifying integer overflow when subtracting. More...

template<typename Rep , typename T >
CUDF_HOST_DEVICE auto	numeric::division_overflow (T lhs, T rhs)
	Function for identifying integer overflow when dividing. More...

template<typename Rep , typename T >
CUDF_HOST_DEVICE auto	numeric::multiplication_overflow (T lhs, T rhs)
	Function for identifying integer overflow when multiplying. More...

template<typename Rep1 , Radix Rad1>
CUDF_HOST_DEVICE fixed_point< Rep1, Rad1 >	numeric::operator+ (fixed_point< Rep1, Rad1 > const &lhs, fixed_point< Rep1, Rad1 > const &rhs)

template<typename Rep1 , Radix Rad1>
CUDF_HOST_DEVICE fixed_point< Rep1, Rad1 >	numeric::operator- (fixed_point< Rep1, Rad1 > const &lhs, fixed_point< Rep1, Rad1 > const &rhs)

template<typename Rep1 , Radix Rad1>
CUDF_HOST_DEVICE fixed_point< Rep1, Rad1 >	numeric::operator* (fixed_point< Rep1, Rad1 > const &lhs, fixed_point< Rep1, Rad1 > const &rhs)

template<typename Rep1 , Radix Rad1>
CUDF_HOST_DEVICE fixed_point< Rep1, Rad1 >	numeric::operator/ (fixed_point< Rep1, Rad1 > const &lhs, fixed_point< Rep1, Rad1 > const &rhs)

template<typename Rep1 , Radix Rad1>
CUDF_HOST_DEVICE bool	numeric::operator== (fixed_point< Rep1, Rad1 > const &lhs, fixed_point< Rep1, Rad1 > const &rhs)

template<typename Rep1 , Radix Rad1>
CUDF_HOST_DEVICE bool	numeric::operator!= (fixed_point< Rep1, Rad1 > const &lhs, fixed_point< Rep1, Rad1 > const &rhs)

template<typename Rep1 , Radix Rad1>
CUDF_HOST_DEVICE bool	numeric::operator<= (fixed_point< Rep1, Rad1 > const &lhs, fixed_point< Rep1, Rad1 > const &rhs)

template<typename Rep1 , Radix Rad1>
CUDF_HOST_DEVICE bool	numeric::operator>= (fixed_point< Rep1, Rad1 > const &lhs, fixed_point< Rep1, Rad1 > const &rhs)

template<typename Rep1 , Radix Rad1>
CUDF_HOST_DEVICE bool	numeric::operator< (fixed_point< Rep1, Rad1 > const &lhs, fixed_point< Rep1, Rad1 > const &rhs)

template<typename Rep1 , Radix Rad1>
CUDF_HOST_DEVICE bool	numeric::operator> (fixed_point< Rep1, Rad1 > const &lhs, fixed_point< Rep1, Rad1 > const &rhs)

template<typename Rep1 , Radix Rad1>
CUDF_HOST_DEVICE fixed_point< Rep1, Rad1 >	numeric::operator% (fixed_point< Rep1, Rad1 > const &lhs, fixed_point< Rep1, Rad1 > const &rhs)

Detailed Description

Enumeration Type Documentation

◆ Radix

enum numeric::Radix : int32_t

strong

Scoped enumerator to use when constructing fixed_point

Examples:

using decimal32 = fixed_point<int32_t, Radix::BASE_10>;

using binary64 = fixed_point<int64_t, Radix::BASE_2>;

numeric::decimal32

fixed_point< int32_t, Radix::BASE_10 > decimal32

32-bit decimal fixed point

Definition: fixed_point.hpp:798

Definition at line 55 of file fixed_point.hpp.

Function Documentation

◆ addition_overflow()

template<typename Rep , typename T >

CUDF_HOST_DEVICE auto numeric::addition_overflow	(	T	lhs,
		T	rhs
	)

inline

Function for identifying integer overflow when adding.

Template Parameters

Rep	Type of integer to check for overflow on
T	Types of lhs and rhs (ensures they are the same type)

Parameters

lhs	Left hand side of addition
rhs	Right hand side of addition

Returns: true if addition causes overflow, false otherwise

Definition at line 615 of file fixed_point.hpp.

◆ division_overflow()

template<typename Rep , typename T >

CUDF_HOST_DEVICE auto numeric::division_overflow	(	T	lhs,
		T	rhs
	)

inline

Function for identifying integer overflow when dividing.

Template Parameters

Rep	Type of integer to check for overflow on
T	Types of lhs and rhs (ensures they are the same type)

Parameters

lhs	Left hand side of division
rhs	Right hand side of division

Returns: true if division causes overflow, false otherwise

Definition at line 645 of file fixed_point.hpp.

◆ is_supported_representation_type()

template<typename T >

constexpr CUDF_HOST_DEVICE auto numeric::is_supported_representation_type ( )

inlineconstexpr

Returns true if the representation type is supported by fixed_point

Template Parameters

T	The representation type

Returns: true if the type is supported by fixed_point implementation

Definition at line 64 of file fixed_point.hpp.

◆ multiplication_overflow()

template<typename Rep , typename T >

CUDF_HOST_DEVICE auto numeric::multiplication_overflow	(	T	lhs,
		T	rhs
	)

inline

Function for identifying integer overflow when multiplying.

Template Parameters

Rep	Type of integer to check for overflow on
T	Types of lhs and rhs (ensures they are the same type)

Parameters

lhs	Left hand side of multiplication
rhs	Right hand side of multiplication

Returns: true if multiplication causes overflow, false otherwise

Definition at line 659 of file fixed_point.hpp.

◆ operator!=()

template<typename Rep1 , Radix Rad1>

CUDF_HOST_DEVICE bool numeric::operator!=	(	fixed_point< Rep1, Rad1 > const &	lhs,
		fixed_point< Rep1, Rad1 > const &	rhs
	)

inline

If _scales are equal, _values are compared. If _scales are not equal, the number with the larger _scale is shifted to the smaller _scale, and then the _values are compared.

Template Parameters

Rep1	Representation type of the operand `lhs` and `rhs`
Rad1	Radix (base) type of the operand `lhs` and `rhs`

Parameters

lhs	The left hand side operand
rhs	The right hand side operand

Returns: true if lhs and rhs are not equal, false if not

Definition at line 745 of file fixed_point.hpp.

◆ operator%()

template<typename Rep1 , Radix Rad1>

CUDF_HOST_DEVICE fixed_point<Rep1, Rad1> numeric::operator%	(	fixed_point< Rep1, Rad1 > const &	lhs,
		fixed_point< Rep1, Rad1 > const &	rhs
	)

inline

If _scales are equal, the modulus is computed directly. If _scales are not equal, the number with larger _scale is shifted to the smaller _scale, and then the modulus is computed.

Template Parameters

Rep1	Representation type of the operand `lhs` and `rhs`
Rad1	Radix (base) type of the operand `lhs` and `rhs`

Parameters

lhs	The left hand side operand
rhs	The right hand side operand

Returns: The resulting fixed_point number

Definition at line 790 of file fixed_point.hpp.

◆ operator*()

template<typename Rep1 , Radix Rad1>

CUDF_HOST_DEVICE fixed_point<Rep1, Rad1> numeric::operator*	(	fixed_point< Rep1, Rad1 > const &	lhs,
		fixed_point< Rep1, Rad1 > const &	rhs
	)

inline

_scales are added and _values are multiplied.

Template Parameters

Rep1	Representation type of the operand `lhs` and `rhs`
Rad1	Radix (base) type of the operand `lhs` and `rhs`

Parameters

lhs	The left hand side operand
rhs	The right hand side operand

Returns: The resulting fixed_point product

Definition at line 706 of file fixed_point.hpp.

◆ operator+()

template<typename Rep1 , Radix Rad1>

CUDF_HOST_DEVICE fixed_point<Rep1, Rad1> numeric::operator+	(	fixed_point< Rep1, Rad1 > const &	lhs,
		fixed_point< Rep1, Rad1 > const &	rhs
	)

inline

If _scales are equal, _values are added. If _scales are not equal, the number with the larger _scale is shifted to the smaller _scale, and then the _values are added.

Template Parameters

Rep1	Representation type of the operand `lhs` and `rhs`
Rad1	Radix (base) type of the operand `lhs` and `rhs`

Parameters

lhs	The left hand side operand
rhs	The right hand side operand

Returns: The resulting fixed_point sum

Definition at line 670 of file fixed_point.hpp.

◆ operator-()

template<typename Rep1 , Radix Rad1>

CUDF_HOST_DEVICE fixed_point<Rep1, Rad1> numeric::operator-	(	fixed_point< Rep1, Rad1 > const &	lhs,
		fixed_point< Rep1, Rad1 > const &	rhs
	)

inline

If _scales are equal, _values are subtracted. If _scales are not equal, the number with the larger _scale is shifted to the smaller _scale, and then the _values are subtracted.

Template Parameters

Rep1	Representation type of the operand `lhs` and `rhs`
Rad1	Radix (base) type of the operand `lhs` and `rhs`

Parameters

lhs	The left hand side operand
rhs	The right hand side operand

Returns: The resulting fixed_point difference

Definition at line 688 of file fixed_point.hpp.

◆ operator/()

template<typename Rep1 , Radix Rad1>

CUDF_HOST_DEVICE fixed_point<Rep1, Rad1> numeric::operator/	(	fixed_point< Rep1, Rad1 > const &	lhs,
		fixed_point< Rep1, Rad1 > const &	rhs
	)

inline

_scales are subtracted and _values are divided.

Template Parameters

Rep1	Representation type of the operand `lhs` and `rhs`
Rad1	Radix (base) type of the operand `lhs` and `rhs`

Parameters

lhs	The left hand side operand
rhs	The right hand side operand

Returns: The resulting fixed_point quotient

Definition at line 721 of file fixed_point.hpp.

◆ operator<()

template<typename Rep1 , Radix Rad1>

CUDF_HOST_DEVICE bool numeric::operator<	(	fixed_point< Rep1, Rad1 > const &	lhs,
		fixed_point< Rep1, Rad1 > const &	rhs
	)

inline

If _scales are equal, _values are compared. If _scales are not equal, the number with the larger _scale is shifted to the smaller _scale, and then the _values are compared.

Template Parameters

Rep1	Representation type of the operand `lhs` and `rhs`
Rad1	Radix (base) type of the operand `lhs` and `rhs`

Parameters

lhs	The left hand side operand
rhs	The right hand side operand

Returns: true if lhs less than rhs, false if not

Definition at line 772 of file fixed_point.hpp.

◆ operator<=()

template<typename Rep1 , Radix Rad1>

CUDF_HOST_DEVICE bool numeric::operator<=	(	fixed_point< Rep1, Rad1 > const &	lhs,
		fixed_point< Rep1, Rad1 > const &	rhs
	)

inline

If _scales are equal, _values are compared. If _scales are not equal, the number with the larger _scale is shifted to the smaller _scale, and then the _values are compared.

Template Parameters

Rep1	Representation type of the operand `lhs` and `rhs`
Rad1	Radix (base) type of the operand `lhs` and `rhs`

Parameters

lhs	The left hand side operand
rhs	The right hand side operand

Returns: true if lhs less than or equal to rhs, false if not

Definition at line 754 of file fixed_point.hpp.

◆ operator==()

template<typename Rep1 , Radix Rad1>

CUDF_HOST_DEVICE bool numeric::operator==	(	fixed_point< Rep1, Rad1 > const &	lhs,
		fixed_point< Rep1, Rad1 > const &	rhs
	)

inline

If _scales are equal, _values are compared. If _scales are not equal, the number with the larger _scale is shifted to the smaller _scale, and then the _values are compared.

Template Parameters

Rep1	Representation type of the operand `lhs` and `rhs`
Rad1	Radix (base) type of the operand `lhs` and `rhs`

Parameters

lhs	The left hand side operand
rhs	The right hand side operand

Returns: true if lhs and rhs are equal, false if not

Definition at line 736 of file fixed_point.hpp.

◆ operator>()

template<typename Rep1 , Radix Rad1>

CUDF_HOST_DEVICE bool numeric::operator>	(	fixed_point< Rep1, Rad1 > const &	lhs,
		fixed_point< Rep1, Rad1 > const &	rhs
	)

inline

If _scales are equal, _values are compared. If _scales are not equal, the number with the larger _scale is shifted to the smaller _scale, and then the _values are compared.

Template Parameters

Rep1	Representation type of the operand `lhs` and `rhs`
Rad1	Radix (base) type of the operand `lhs` and `rhs`

Parameters

lhs	The left hand side operand
rhs	The right hand side operand

Returns: true if lhs greater than rhs, false if not

Definition at line 781 of file fixed_point.hpp.

◆ operator>=()

template<typename Rep1 , Radix Rad1>

CUDF_HOST_DEVICE bool numeric::operator>=	(	fixed_point< Rep1, Rad1 > const &	lhs,
		fixed_point< Rep1, Rad1 > const &	rhs
	)

inline

If _scales are equal, _values are compared. If _scales are not equal, the number with the larger _scale is shifted to the smaller _scale, and then the _values are compared.

Template Parameters

Rep1	Representation type of the operand `lhs` and `rhs`
Rad1	Radix (base) type of the operand `lhs` and `rhs`

Parameters

lhs	The left hand side operand
rhs	The right hand side operand

Returns: true if lhs greater than or equal to rhs, false if not

Definition at line 763 of file fixed_point.hpp.

◆ subtraction_overflow()

template<typename Rep , typename T >

CUDF_HOST_DEVICE auto numeric::subtraction_overflow	(	T	lhs,
		T	rhs
	)

inline

Function for identifying integer overflow when subtracting.

Template Parameters

Rep	Type of integer to check for overflow on
T	Types of lhs and rhs (ensures they are the same type)

Parameters

lhs	Left hand side of subtraction
rhs	Right hand side of subtraction

Returns: true if subtraction causes overflow, false otherwise

Definition at line 630 of file fixed_point.hpp.

Files

Classes

Typedefs

Enumerations

Functions

Detailed Description

Enumeration Type Documentation

◆ Radix

Function Documentation

◆ addition_overflow()

◆ division_overflow()

◆ is_supported_representation_type()

◆ multiplication_overflow()

◆ operator!=()

◆ operator%()

◆ operator*()

◆ operator+()

◆ operator-()

◆ operator/()

◆ operator<()

◆ operator<=()

◆ operator==()

◆ operator>()

◆ operator>=()

◆ subtraction_overflow()