SIMD.greaterThan

The static SIMD.%type%.greaterThan() method returns a selection mask with values depending on a greater-than comparison (a > b) in each lane.

Syntax

SIMD.Float32x4.greaterThan(a, b)
SIMD.Float64x2.greaterThan(a, b)

SIMD.Int8x16.greaterThan(a, b)
SIMD.Int16x8.greaterThan(a, b)
SIMD.Int32x4.greaterThan(a, b)

SIMD.Uint8x16.greaterThan(a, b)
SIMD.Uint16x8.greaterThan(a, b)
SIMD.Uint32x4.greaterThan(a, b) 

Parameters

a

An instance of a SIMD type.

b

Another instance of a SIMD type.

Return value

A selection mask (of type Bool64x2, Bool32x4, Bool16x8 or Bool8x16 depending on the size). The lane values of the mask are either true or false depending on the result of a > b.

Description

The SIMD.%type%.greaterThan method is one of the SIMD comparison operations and does not give you back the values of the greater-than comparison of two instances directly. Instead, a selection mask with Boolean values is returned.

Examples

Selecting the largest lane values from two vectors

In this example, two SIMD Float32x4 data types are compared to find the largest value for each lane and a selection mask gets created based on the result. This selection mask is then used to select the largest values of both vectors into a new Float32x4 vector.

var a = SIMD.Float32x4(1, 6, 3, 11);
var b = SIMD.Float32x4(1, 4, 7, 9);

var mask = SIMD.Float32x4.greaterThan(a, b);
// Bool32x4[false, true, false, true]

var result = SIMD.Float32x4.select(mask, a, b);
// Float32x4[1, 6, 7, 11]

Specifications

Specification	Status	Comment
SIMD The definition of 'SIMDConstructor.greaterThan' in that specification.	Draft	Initial definition.

Browser compatibility

See also

• SIMD
• SIMD.%type%.select()