num_collect::multi_double::impl Namespace Reference

Namespace of internal implementations. More...

Functions
auto	quick_two_sum (double a, double b) -> std::tuple< double, double >
	calculate sum of a and b, and error of the sum on the condition that absolute value of a is larger than one of b
auto	split (double a) -> std::tuple< double, double >
	split a number to higher bits and lower bits
auto	two_prod (double a, double b) -> std::tuple< double, double >
	calculate product of a and b, and error of the product
auto	two_prod_no_fma (double a, double b) -> std::tuple< double, double >
	calculate product of a and b, and error of the product without FMA instructions
auto	two_sum (double a, double b) -> std::tuple< double, double >
	calculate sum of a and b, and error of the sum

Detailed Description

Namespace of internal implementations.

Function Documentation

quick_two_sum()

auto num_collect::multi_double::impl::quick_two_sum ( double a, double b ) -> std::tuple<double, double>

inline

calculate sum of a and b, and error of the sum on the condition that absolute value of a is larger than one of b

Parameters

[in]	a	a number
[in]	b	a number

Returns

sum of a and b, and error of sum

Definition at line 44 of file basic_operations.h.

split()

auto num_collect::multi_double::impl::split ( double a ) -> std::tuple<double, double>

inline

split a number to higher bits and lower bits

Parameters

[in]

a

a number

Returns

higher bits and lower bits

Definition at line 70 of file basic_operations.h.

two_prod()

auto num_collect::multi_double::impl::two_prod ( double a, double b ) -> std::tuple<double, double>

inline

calculate product of a and b, and error of the product

Parameters

[in]	a	a number
[in]	b	a number

Returns

product of a and b, and error of product

Definition at line 124 of file basic_operations.h.

two_prod_no_fma()

auto num_collect::multi_double::impl::two_prod_no_fma ( double a, double b ) -> std::tuple<double, double>

inline

calculate product of a and b, and error of the product without FMA instructions

Parameters

[in]	a	a number
[in]	b	a number

Returns

product of a and b, and error of product

Definition at line 86 of file basic_operations.h.

two_sum()

auto num_collect::multi_double::impl::two_sum ( double a, double b ) -> std::tuple<double, double>

inline

calculate sum of a and b, and error of the sum

Parameters

[in]	a	a number
[in]	b	a number

Returns

sum of a and b, and error of sum

Definition at line 57 of file basic_operations.h.