fixed.extractNumericType

Extract numeric type from input

Since R2021a

Syntax

T = fixed.extractNumericType(x)

Description

T = fixed.extractNumericType(x) returns an embedded.numerictype object that is extracted from a numeric value input x, or is specified by the input argument x.

Examples

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Extract Numeric Type

Extract the numeric type from an input numeric value.

T = fixed.extractNumericType(pi)

T =


          DataTypeMode: Double

T = fixed.extractNumericType(int8(0))

T =


          DataTypeMode: Fixed-point: binary point scaling
            Signedness: Signed
            WordLength: 8
        FractionLength: 0

T = fixed.extractNumericType(fi(pi,1,24,12))

T =


          DataTypeMode: Fixed-point: binary point scaling
            Signedness: Signed
            WordLength: 24
        FractionLength: 12

T = fixed.extractNumericType(half(pi))

T =


          DataTypeMode: Half

Extract the numeric type from a numeric type specification object.

T = fixed.extractNumericType(numerictype(1,32,16))

T =


          DataTypeMode: Fixed-point: binary point scaling
            Signedness: Signed
            WordLength: 32
        FractionLength: 16

T = fixed.extractNumericType(fixdt(0,18,0))

T =


          DataTypeMode: Fixed-point: binary point scaling
            Signedness: Unsigned
            WordLength: 18
        FractionLength: 0

Extract the numeric type from a data type name string.

T = fixed.extractNumericType('int8')

T =


          DataTypeMode: Fixed-point: binary point scaling
            Signedness: Signed
            WordLength: 8
        FractionLength: 0

T = fixed.extractNumericType('sfix16_En3')

T =


          DataTypeMode: Fixed-point: binary point scaling
            Signedness: Signed
            WordLength: 16
        FractionLength: 3

Extract the numeric type from a constructor string.

T = fixed.extractNumericType('numerictype(1,33,55)')

T =


          DataTypeMode: Fixed-point: binary point scaling
            Signedness: Signed
            WordLength: 33
        FractionLength: 55

T = fixed.extractNumericType('fixdt(0,77,22)')

T =


          DataTypeMode: Fixed-point: binary point scaling
            Signedness: Unsigned
            WordLength: 77
        FractionLength: 22

Input Arguments

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`x` — Input
scalar

Input, specified as a scalar.

The following input types are supported:

Numeric values — half, single, double, int8, int16, int32, int64, uint8, uint16, uint32, uint64, logical, fi
Numeric type specification objects — embedded.numerictype objects, Simulink.NumericType objects
MATLAB^® data type name strings — 'half', 'single', 'double', 'int8', 'int16', 'int32', 'int64', 'uint8', 'uint16', 'uint32', 'uint64', 'logical'
Simulink^® data type name strings (not aliases) — 'bool', 'sfix16_En3', etc.
Constructor strings that evaluate to a numeric type object — 'numerictype(1,33,55)', 'fixdt(0,77,22)', etc.