Content
	DSP extension specific number definitions

	Helium specific number definitions

	Scalar number definitions

Data Structures
struct	number_traits< T >
	Properties of a scalar datatype. More...

struct	vector_traits< T, arch, typename >
	Properties of a vector datatype linked to a scalar datatype. More...

struct	vctpq< T, typename >
	Predicate (only defined for vector architectures) More...

Description

Number datatypes expressing different properties of the numbers according to the architecture.

Those definitions are used to write architecture independents algorithms.

Data Structure Documentation

struct arm_cmsis_dsp::number_traits

template<typename T>
struct arm_cmsis_dsp::number_traits< T >

Properties of a scalar datatype.

Template Parameters

T datatype

Needs to contain two static bool : is_float and is_fixed

Needs to contain a static function one returning the value 1 for this datatype (used to write some datatype generic algorithms)

struct arm_cmsis_dsp::vector_traits

template<typename T, typename arch = Neon, typename = void>
struct arm_cmsis_dsp::vector_traits< T, arch, typename >

Properties of a vector datatype linked to a scalar datatype.

Template Parameters

T	Type of the scalar
arch	Architecture. It is defined by the architecture selection code and should never be set by the user.

Public Types
typedef T	type
	Scalar datatype.

typedef T	storage_type
	Storage type (for instance for Q15 scalar the storage is int16_t)

Static Public Attributes
static constexpr bool	has_vector = false
	True if scalar type has a related vector type.

static constexpr bool	is_float = false
	True if scalar type is a float (half, float or double)

static constexpr bool	is_fixed = false
	True if scalar type is fixed point.

struct arm_cmsis_dsp::inner::vctpq

template<typename T, typename = void>
struct arm_cmsis_dsp::inner::vctpq< T, typename >

Predicate (only defined for vector architectures)

Template Parameters

T	scalar data type

Parameters

v	Number of loops