power

Classes
struct	etl::power< NV, POWER >
struct	etl::power_of_2_round_up< NV >
struct	etl::power_of_2_round_up< 0 >
struct	etl::power_of_2_round_down< NV >
struct	etl::power_of_2_round_down< 0 >
struct	etl::power_of_2_round_down< 1 >
struct	etl::power_of_2_round_down< 2 >
struct	etl::is_power_of_2< NV >
struct	etl::is_power_of_2< 0 >
struct	etl::is_power_of_2< 1 >

Detailed Description

power<N, POWER> : Calculates N to the power POWER.

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Class Documentation

etl::power

struct etl::power

template<size_t NV, size_t POWER>
struct etl::power< NV, POWER >

Calculates powers.

Note

Only supports positive N.

Static Public Attributes
static ETL_CONSTANT private_power::type	value = NV * power<NV, POWER - 1>::value

etl::power_of_2_round_up

struct etl::power_of_2_round_up

template<size_t NV>
struct etl::power_of_2_round_up< NV >

Calculates the rounded up power of 2.

Public Types
enum	value_type { value = 1 << (etl::log2<NV - 1>::value + 1) }

etl::power_of_2_round_up< 0 >

struct etl::power_of_2_round_up< 0 >

Calculates the rounded up power of 2. Specialisation for 0.

Public Types
enum	value_type { value = 2 }

etl::power_of_2_round_down

struct etl::power_of_2_round_down

template<size_t NV>
struct etl::power_of_2_round_down< NV >

Calculates the rounded down power of 2.

Public Types
enum	value_type { value = 1 << (etl::log2<NV - 1>::value) }

etl::power_of_2_round_down< 0 >

struct etl::power_of_2_round_down< 0 >

Calculates the rounded down power of 2. Specialisation for 0.

Public Types
enum	value_type { value = 2 }

etl::power_of_2_round_down< 1 >

struct etl::power_of_2_round_down< 1 >

Calculates the rounded down power of 2. Specialisation for 1.

Public Types
enum	value_type { value = 2 }

etl::power_of_2_round_down< 2 >

struct etl::power_of_2_round_down< 2 >

Calculates the rounded down power of 2. Specialisation for 2.

Public Types
enum	value_type { value = 2 }

etl::is_power_of_2

struct etl::is_power_of_2

template<size_t NV>
struct etl::is_power_of_2< NV >

Checks if N is a power of 2.

Static Public Attributes
static ETL_CONSTANT bool	value = (NV & (NV - 1)) == 0

etl::is_power_of_2< 0 >

struct etl::is_power_of_2< 0 >

Checks if N is a power of 2. Specialisation for 0.

Static Public Attributes
static ETL_CONSTANT bool	value = false

etl::is_power_of_2< 1 >

struct etl::is_power_of_2< 1 >

Checks if N is a power of 2. Specialisation for 1.

Static Public Attributes
static ETL_CONSTANT bool	value = false