cxxomfort::library::numeric Namespace Reference

Supplements to the standard utilities in <numeric>. More...

Namespaces
	ctmath
	Compile-time arithmethic functions, that can be used in template parameters.

Functions
template<typename T >
std::make_signed< T >::type	to_signed (T t)
	Converts t to the equivalent integral signed type. More...
template<typename T >
std::make_unsigned< T >::type	to_signed (T t)
	Converts t to the equivalent integral unsigned type. More...
template<typename It , typename T , typename F >
T	accumulate_right (It ini, It fin, T v0, F f)
	Folds a sequence with f from the right . More...

Detailed Description

Supplements to the standard utilities in <numeric>.

Function Documentation

to_signed() [1/2]

std::make_signed<T>::type cxxomfort::library::numeric::to_signed

(

T

t

)

Converts t to the equivalent integral signed type.

Converts t to the equivalent integral signed type.

Parameters

t	A value fo one of C++'s integer types.

Returns

A value of a type similar to t 's, except qualified as signed (eg.: "signed int").

to_signed() [2/2]

std::make_unsigned<T>::type cxxomfort::library::numeric::to_signed

(

T

t

)

Converts t to the equivalent integral unsigned type.

Converts t to the equivalent integral unsigned type.

Converts t to the equivalent integral signed type.

Parameters

t	A value fo one of C++'s integer types.

Returns

A value of a type similar to t 's, except qualified as signed (eg.: "signed int").

accumulate_right()

T cxxomfort::library::numeric::accumulate_right	(	It	ini,
		It	fin,
		T	v0,
		F	f
	)

Folds a sequence with f from the right .

Parameters

f	An accumulator object.
v0	An initial value.

Returns

The final accumulated value.

This function is exactly like std::accumulate except that the accumulator processes its state value on the right instead of on the left. In other words, if v carries the state, where std::accumulate calculates f(v, x_i), accumulate_right calculates f(x_i, v).