Pothos::Util Namespace Reference

Classes
class	BlockDescriptionParser
class	Compiler
class	CompilerArgs
class	EvalEnvironment
class	FileLock
struct	Fundamental
	Determine the fundamental data type of T for primitive types. More...
struct	Fundamental< std::complex< T > >
	Overload for getting the fundamental type of std::complex<T> More...
struct	integer_sequence
class	OrderedQueue
class	RefHolder
class	RingDeque
class	SharedLock
class	SpinLock
class	SpinLockRW
class	UID
struct	unwrap_refwrapper
struct	unwrap_refwrapper< std::reference_wrapper< T > >

Typedefs
template<typename T >
using	special_decay_t = typename unwrap_refwrapper< typename std::decay< T >::type >::type
template<std::size_t... Ints>
using	index_sequence = integer_sequence< std::size_t, Ints... >
template<typename T , T N>
using	make_integer_sequence = typename GenSeq< T, int(N)>::Type
template<std::size_t N>
using	make_index_sequence = make_integer_sequence< std::size_t, N >
template<typename... T>
using	index_sequence_for = make_index_sequence< sizeof...(T)>
template<typename BaseType , typename OtherType >
using	disable_if_same = typename std::enable_if< not std::is_same< BaseType, typename std::decay< OtherType >::type >::value >::type

Functions
template<typename T0 , typename T1 >
int	compareTo (const T0 &v0, const T1 &v1)
POTHOS_API bool	isIPv6Supported (void)
POTHOS_API std::string	getWildcardAddr (const std::string &service="")
POTHOS_API std::string	getLoopbackAddr (const std::string &service="")
template<typename T , typename U >
T	fromQ (const U &in, const int n)
template<typename T , typename U >
T	fromQ (const U &in)
template<typename T , typename U >
T	floatToQ (const U &in, const int n)
template<typename T , typename U >
T	floatToQ (const U &in)
POTHOS_API std::string	typeInfoToString (const std::type_info &type)

Typedef Documentation

disable_if_same

template<typename BaseType , typename OtherType >

using Pothos::Util::disable_if_same = typedef typename std::enable_if< not std::is_same<BaseType, typename std::decay<OtherType>::type>::value>::type

---

Disable SFINAE type used with universal reference constructors

See also

http://ericniebler.com/2013/08/07/universal-references-and-the-copy-constructo/

Function Documentation

compareTo()

template<typename T0 , typename T1 >

int Pothos::Util::compareTo	(	const T0 &	v0,
		const T1 &	v1
	)

Compare two objects and return a integer result. The objects being compared require operator==() and operator<().

Parameters

v0	value on the left hand side of the comparison
v1	value on the right hand side of the comparison

Returns

0 for equal, -1 if v0 < v1, +1 if v0 > v1

floatToQ() [1/2]

template<typename T , typename U >

T Pothos::Util::floatToQ	(	const U &	in,
		const int	n
	)

Convert a floating point number into Q format.

• Floating point outputs are passed-through without change.
• Fixed point outputs are shifted up by the number of fractional bits.

Template Parameters

T	the output data type
U	the input data type

Parameters

in	the input number
n	the number of fractional bits

Returns

the output number in Q format

floatToQ() [2/2]

template<typename T , typename U >

T Pothos::Util::floatToQ

(

const U &

in

)

Convert a floating point number into Q format. The fractional bits default to half of the fixed point integer size.

fromQ() [1/2]

template<typename T , typename U >

T Pothos::Util::fromQ	(	const U &	in,
		const int	n
	)

Convert from a Q format number.

• Floating point inputs are passed-through without change.
• Fixed point inputs are down-shifted by the number of fractional bits.

Template Parameters

T	the output data type
U	the input data type

Parameters

in	the input number in Q format
n	the number of fractional bits

Returns

the output number

fromQ() [2/2]

template<typename T , typename U >

T Pothos::Util::fromQ

(

const U &

in

)

Convert from a Q format number. The fractional bits default to half of the fixed point integer size.

getLoopbackAddr()

POTHOS_API std::string Pothos::Util::getLoopbackAddr

(

const std::string &

service = ""

)

Get a functioning loopback address "::1" or "127.0.0.1".

Parameters

service

an optional service or port number

Returns

the loopback address (IPv6 is available)

getWildcardAddr()

POTHOS_API std::string Pothos::Util::getWildcardAddr

(

const std::string &

service = ""

)

Get a functioning wildcard address "::" or "0.0.0.0".

Parameters

service

an optional service or port number

Returns

the wildcard address (IPv6 is available)

isIPv6Supported()

POTHOS_API bool Pothos::Util::isIPv6Supported

(

void

)

Does this system support IPv6?

Returns

true if supported

typeInfoToString()

POTHOS_API std::string Pothos::Util::typeInfoToString

(

const std::type_info &

type

)

Helper method to get the string representation of a type info. The implementation may look up in a table or demangles type.name().