Mathematical Operations

Description

Mathematical operations on Vec's, such as min, max, rounding, etc.

See also

Masked Mathematical Operations

Functions
template<typename T , size_t SIMD_WIDTH>
static Vec< T, SIMD_WIDTH >	simd::abs (const Vec< T, SIMD_WIDTH > &a)
	Computes the absolute value of the elements of a Vec.
template<typename T , size_t SIMD_WIDTH>
static Vec< T, SIMD_WIDTH >	simd::ceil (const Vec< T, SIMD_WIDTH > &a)
	Rounds the elements of a Vec up to the nearest integer.
template<typename T , size_t SIMD_WIDTH>
static Vec< T, SIMD_WIDTH >	simd::floor (const Vec< T, SIMD_WIDTH > &a)
	Rounds the elements of a Vec down to the nearest integer.
template<typename T , size_t SIMD_WIDTH>
static Vec< T, SIMD_WIDTH >	simd::max (const Vec< T, SIMD_WIDTH > &a, const Vec< T, SIMD_WIDTH > &b)
	Computes the maximum of the elements of two Vec's.
template<typename T , size_t SIMD_WIDTH>
static Vec< T, SIMD_WIDTH >	simd::min (const Vec< T, SIMD_WIDTH > &a, const Vec< T, SIMD_WIDTH > &b)
	Computes the minimum of the elements of two Vec's.
template<typename T , size_t SIMD_WIDTH>
static Vec< T, SIMD_WIDTH >	simd::neg (const Vec< T, SIMD_WIDTH > &a)
	Negates the elements of a Vec.
template<typename T , size_t SIMD_WIDTH>
static Vec< T, SIMD_WIDTH >	simd::round (const Vec< T, SIMD_WIDTH > &a)
	Rounds the elements of a Vec to the nearest integer.
template<typename T , size_t SIMD_WIDTH>
static Vec< T, SIMD_WIDTH >	simd::truncate (const Vec< T, SIMD_WIDTH > &a)
	Truncates the elements of a Vec to the nearest integer i.e. rounds towards zero.

Function Documentation

abs()

template<typename T , size_t SIMD_WIDTH>

static Vec< T, SIMD_WIDTH > simd::abs ( const Vec< T, SIMD_WIDTH > & a )

inlinestatic

Computes the absolute value of the elements of a Vec.

For unsigned types, this function simply returns the input Vec.

Parameters

a	Vec to compute the absolute value of

Returns

Vec containing the absolute value of the elements of the input Vec

ceil()

template<typename T , size_t SIMD_WIDTH>

static Vec< T, SIMD_WIDTH > simd::ceil ( const Vec< T, SIMD_WIDTH > & a )

inlinestatic

Rounds the elements of a Vec up to the nearest integer.

For integer types, this function simply returns the input Vec.

Parameters

a	Vec to round

Returns

Vec containing the rounded elements of the input Vec

floor()

template<typename T , size_t SIMD_WIDTH>

static Vec< T, SIMD_WIDTH > simd::floor ( const Vec< T, SIMD_WIDTH > & a )

inlinestatic

Rounds the elements of a Vec down to the nearest integer.

For integer types, this function simply returns the input Vec.

Parameters

a	Vec to round

Returns

Vec containing the rounded elements of the input Vec

max()

template<typename T , size_t SIMD_WIDTH>

static Vec< T, SIMD_WIDTH > simd::max ( const Vec< T, SIMD_WIDTH > & a, const Vec< T, SIMD_WIDTH > & b )

inlinestatic

Computes the maximum of the elements of two Vec's.

Parameters

a	first Vec
b	second Vec

Returns

Vec containing the maximum of the elements of the input Vec's

min()

template<typename T , size_t SIMD_WIDTH>

static Vec< T, SIMD_WIDTH > simd::min ( const Vec< T, SIMD_WIDTH > & a, const Vec< T, SIMD_WIDTH > & b )

inlinestatic

Computes the minimum of the elements of two Vec's.

Parameters

a	first Vec
b	second Vec

Returns

Vec containing the minimum of the elements of the input Vec's

neg()

template<typename T , size_t SIMD_WIDTH>

static Vec< T, SIMD_WIDTH > simd::neg ( const Vec< T, SIMD_WIDTH > & a )

inlinestatic

Negates the elements of a Vec.

This function is only available for signed types.

Parameters

a	Vec to negate

Returns

Vec containing the negated elements of the input Vec

round()

template<typename T , size_t SIMD_WIDTH>

static Vec< T, SIMD_WIDTH > simd::round ( const Vec< T, SIMD_WIDTH > & a )

inlinestatic

Rounds the elements of a Vec to the nearest integer.

For integer types, this function simply returns the input Vec.

Parameters

a	Vec to round

Returns

Vec containing the rounded elements of the input Vec

truncate()

template<typename T , size_t SIMD_WIDTH>

static Vec< T, SIMD_WIDTH > simd::truncate ( const Vec< T, SIMD_WIDTH > & a )

inlinestatic

Truncates the elements of a Vec to the nearest integer i.e. rounds towards zero.

For integer types, this function simply returns the input Vec.

Parameters

a	Vec to truncate

Returns

Vec containing the truncated elements of the input Vec