Nearest integer floating point operations

Functions
template<class E >
auto	xt::ceil (E &&e) noexcept -> detail::xfunction_type_t< math::ceil_fun, E >
	ceil function.
template<class E >
auto	xt::floor (E &&e) noexcept -> detail::xfunction_type_t< math::floor_fun, E >
	floor function.
template<class E >
auto	xt::trunc (E &&e) noexcept -> detail::xfunction_type_t< math::trunc_fun, E >
	trunc function.
template<class E >
auto	xt::round (E &&e) noexcept -> detail::xfunction_type_t< math::round_fun, E >
	round function.
template<class E >
auto	xt::nearbyint (E &&e) noexcept -> detail::xfunction_type_t< math::nearbyint_fun, E >
	nearbyint function.
template<class E >
auto	xt::rint (E &&e) noexcept -> detail::xfunction_type_t< math::rint_fun, E >
	rint function.

Detailed Description

Function Documentation

ceil()

template<class E >

auto xt::ceil ( E && e ) -> detail::xfunction_type_t<math::ceil_fun, E>

inlinenoexcept

ceil function.

Returns an xfunction for the element-wise smallest integer value not less than e.

Parameters

e	an xexpression

Returns

an xfunction

Definition at line 1577 of file xmath.hpp.

floor()

template<class E >

auto xt::floor ( E && e ) -> detail::xfunction_type_t<math::floor_fun, E>

inlinenoexcept

floor function.

Returns an xfunction for the element-wise smallest integer value not greater than e.

Parameters

e	an xexpression

Returns

an xfunction

Definition at line 1592 of file xmath.hpp.

nearbyint()

template<class E >

auto xt::nearbyint ( E && e ) -> detail::xfunction_type_t<math::nearbyint_fun, E>

inlinenoexcept

nearbyint function.

Returns an xfunction for the element-wise rounding of e to integer values in floating point format, using the current rounding mode. nearbyint never raises FE_INEXACT error.

Parameters

e	an xexpression

Returns

an xfunction

Definition at line 1639 of file xmath.hpp.

rint()

template<class E >

auto xt::rint ( E && e ) -> detail::xfunction_type_t<math::rint_fun, E>

inlinenoexcept

rint function.

Returns an xfunction for the element-wise rounding of e to integer values in floating point format, using the current rounding mode. Contrary to nearbyint, rint may raise FE_INEXACT error.

Parameters

e	an xexpression

Returns

an xfunction

Definition at line 1655 of file xmath.hpp.

round()

template<class E >

auto xt::round ( E && e ) -> detail::xfunction_type_t<math::round_fun, E>

inlinenoexcept

round function.

Returns an xfunction for the element-wise nearest integer value to e, rounding halfway cases away from zero, regardless of the current rounding mode.

Parameters

e	an xexpression

Returns

an xfunction

Definition at line 1623 of file xmath.hpp.

trunc()

template<class E >

auto xt::trunc ( E && e ) -> detail::xfunction_type_t<math::trunc_fun, E>

inlinenoexcept

trunc function.

Returns an xfunction for the element-wise nearest integer not greater in magnitude than e.

Parameters

e	an xexpression

Returns

an xfunction

Definition at line 1607 of file xmath.hpp.