half_float::detail::functions Struct Reference

Wrapper implementing unspecialized half-precision functions. More...

#include <Half.h>

Static Public Member Functions
static expr	plus (float x, float y)
static expr	minus (float x, float y)
static expr	multiplies (float x, float y)
static expr	divides (float x, float y)
template<typename charT , typename traits >
static std::basic_ostream< charT, traits > &	write (std::basic_ostream< charT, traits > &out, float arg)
template<typename charT , typename traits >
static std::basic_istream< charT, traits > &	read (std::basic_istream< charT, traits > &in, half &arg)
static expr	fmod (float x, float y)
static expr	remainder (float x, float y)
static expr	remquo (float x, float y, int *quo)
static expr	fdim (float x, float y)
static expr	fma (float x, float y, float z)
static half	nanh (const char *)
static expr	exp (float arg)
static expr	expm1 (float arg)
static expr	exp2 (float arg)
static expr	log (float arg)
static expr	log10 (float arg)
static expr	log1p (float arg)
static expr	log2 (float arg)
static expr	sqrt (float arg)
static expr	cbrt (float arg)
static expr	hypot (float x, float y)
static expr	pow (float base, float exp)
static expr	sin (float arg)
static expr	cos (float arg)
static expr	tan (float arg)
static expr	asin (float arg)
static expr	acos (float arg)
static expr	atan (float arg)
static expr	atan2 (float x, float y)
static expr	sinh (float arg)
static expr	cosh (float arg)
static expr	tanh (float arg)
static expr	asinh (float arg)
static expr	acosh (float arg)
static expr	atanh (float arg)
static expr	erf (float arg)
static expr	erfc (float arg)
static expr	lgamma (float arg)
static expr	tgamma (float arg)
static half	floor (half arg)
static half	ceil (half arg)
static half	trunc (half arg)
static half	round (half arg)
static long	lround (half arg)
static half	rint (half arg)
static long	lrint (half arg)
static half	frexp (half arg, int *exp)
static half	modf (half arg, half *iptr)
static half	scalbln (half arg, long exp)
static int	ilogb (half arg)
static half	logb (half arg)
static half	nextafter (half from, half to)
static half	nexttoward (half from, long double to)
static half	copysign (half x, half y)
static int	fpclassify (half arg)
static bool	isfinite (half arg)
static bool	isinf (half arg)
static bool	isnan (half arg)
static bool	isnormal (half arg)
static bool	signbit (half arg)
static bool	isequal (half x, half y)
static bool	isnotequal (half x, half y)
static bool	isgreater (half x, half y)
static bool	isgreaterequal (half x, half y)
static bool	isless (half x, half y)
static bool	islessequal (half x, half y)
static bool	islessgreater (half x, half y)
static bool	isunordered (half x, half y)

Detailed Description

Wrapper implementing unspecialized half-precision functions.

Member Function Documentation

static expr half_float::detail::functions::acos ( float  arg )

inlinestatic

Arc cosine implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::acosh ( float  arg )

inlinestatic

Hyperbolic area cosine implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::asin ( float  arg )

inlinestatic

Arc sine implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::asinh ( float  arg )

inlinestatic

Hyperbolic area sine implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::atan ( float  arg )

inlinestatic

Arc tangent implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::atan2 ( float  x, float  y  )

inlinestatic

Arc tangent implementation.

Parameters

x	first argument
y	second argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::atanh ( float  arg )

inlinestatic

Hyperbolic area tangent implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::cbrt ( float  arg )

inlinestatic

Cubic root implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static half half_float::detail::functions::ceil ( half  arg )

inlinestatic

Ceiling implementation.

Parameters

arg	value to round

Returns

rounded value

static half half_float::detail::functions::copysign ( half  x, half  y  )

inlinestatic

Sign implementation

Parameters

x	first operand
y	second operand

Returns

composed value

static expr half_float::detail::functions::cos ( float  arg )

inlinestatic

Cosine implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::cosh ( float  arg )

inlinestatic

Hyperbolic cosine implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::divides ( float  x, float  y  )

inlinestatic

Division implementation.

Parameters

x	first operand
y	second operand

Returns

Half-precision quotient stored in single-precision

static expr half_float::detail::functions::erf ( float  arg )

inlinestatic

Error function implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::erfc ( float  arg )

inlinestatic

Complementary implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::exp ( float  arg )

inlinestatic

Exponential implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::exp2 ( float  arg )

inlinestatic

Binary exponential implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::expm1 ( float  arg )

inlinestatic

Exponential implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::fdim ( float  x, float  y  )

inlinestatic

Positive difference implementation.

Parameters

x	first operand
y	second operand

Returns

Positive difference stored in single-precision

static half half_float::detail::functions::floor ( half  arg )

inlinestatic

Floor implementation.

Parameters

arg	value to round

Returns

rounded value

static expr half_float::detail::functions::fma ( float  x, float  y, float  z  )

inlinestatic

Fused multiply-add implementation.

Parameters

x	first operand
y	second operand
z	third operand

Returns

x * y + z stored in single-precision

static expr half_float::detail::functions::fmod ( float  x, float  y  )

inlinestatic

Modulo implementation.

Parameters

x	first operand
y	second operand

Returns

Half-precision division remainder stored in single-precision

static int half_float::detail::functions::fpclassify ( half  arg )

inlinestatic

Classification implementation.

Parameters

arg	value to classify

Return values

true	if infinite number
false	else

static half half_float::detail::functions::frexp ( half  arg, int *  exp  )

inlinestatic

Decompression implementation.

Parameters

arg	number to decompress
exp	address to store exponent at

Returns

normalized significant

static expr half_float::detail::functions::hypot ( float  x, float  y  )

inlinestatic

Hypotenuse implementation.

Parameters

x	first argument
y	second argument

Returns

function value stored in single-preicision

static int half_float::detail::functions::ilogb ( half  arg )

inlinestatic

Exponent implementation.

Parameters

arg	number to query

Returns

floating point exponent

static bool half_float::detail::functions::isequal ( half  x, half  y  )

inlinestatic

Comparison implementation.

Parameters

x	first operand
y	second operand

Return values

true	if operands equal
false	else

static bool half_float::detail::functions::isfinite ( half  arg )

inlinestatic

Classification implementation.

Parameters

arg	value to classify

Return values

true	if finite number
false	else

static bool half_float::detail::functions::isgreater ( half  x, half  y  )

inlinestatic

Comparison implementation.

Parameters

x	first operand
y	second operand

Return values

true	if x > y
false	else

static bool half_float::detail::functions::isgreaterequal ( half  x, half  y  )

inlinestatic

Comparison implementation.

Parameters

x	first operand
y	second operand

Return values

true	if x >= y
false	else

static bool half_float::detail::functions::isinf ( half  arg )

inlinestatic

Classification implementation.

Parameters

arg	value to classify

Return values

true	if infinite number
false	else

static bool half_float::detail::functions::isless ( half  x, half  y  )

inlinestatic

Comparison implementation.

Parameters

x	first operand
y	second operand

Return values

true	if x < y
false	else

static bool half_float::detail::functions::islessequal ( half  x, half  y  )

inlinestatic

Comparison implementation.

Parameters

x	first operand
y	second operand

Return values

true	if x <= y
false	else

static bool half_float::detail::functions::islessgreater ( half  x, half  y  )

inlinestatic

Comparison implementation.

Parameters

x	first operand
y	second operand

Return values

true	neither x > y nor x < y
false	else

static bool half_float::detail::functions::isnan ( half  arg )

inlinestatic

Classification implementation.

Parameters

arg	value to classify

Return values

true	if not a number
false	else

static bool half_float::detail::functions::isnormal ( half  arg )

inlinestatic

Classification implementation.

Parameters

arg	value to classify

Return values

true	if normal number
false	else

static bool half_float::detail::functions::isnotequal ( half  x, half  y  )

inlinestatic

Comparison implementation.

Parameters

x	first operand
y	second operand

Return values

true	if operands not equal
false	else

static bool half_float::detail::functions::isunordered ( half  x, half  y  )

inlinestatic

Comparison implementation.

Parameters

x	first operand
y	second operand

Return values

true	if operand unordered
false	else

static expr half_float::detail::functions::lgamma ( float  arg )

inlinestatic

Gamma logarithm implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::log ( float  arg )

inlinestatic

Logarithm implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::log10 ( float  arg )

inlinestatic

Common logarithm implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::log1p ( float  arg )

inlinestatic

Logarithm implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::log2 ( float  arg )

inlinestatic

Binary logarithm implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static half half_float::detail::functions::logb ( half  arg )

inlinestatic

Exponent implementation.

Parameters

arg	number to query

Returns

floating point exponent

static long half_float::detail::functions::lrint ( half  arg )

inlinestatic

Nearest integer implementation.

Parameters

arg	value to round

Returns

rounded value

static long half_float::detail::functions::lround ( half  arg )

inlinestatic

Nearest integer implementation.

Parameters

arg	value to round

Returns

rounded value

static expr half_float::detail::functions::minus ( float  x, float  y  )

inlinestatic

Subtraction implementation.

Parameters

x	first operand
y	second operand

Returns

Half-precision difference stored in single-precision

static half half_float::detail::functions::modf ( half  arg, half *  iptr  )

inlinestatic

Decompression implementation.

Parameters

arg	number to decompress
iptr	address to store integer part at

Returns

fractional part

static expr half_float::detail::functions::multiplies ( float  x, float  y  )

inlinestatic

Multiplication implementation.

Parameters

x	first operand
y	second operand

Returns

Half-precision product stored in single-precision

static half half_float::detail::functions::nanh ( const char *  )

inlinestatic

Get NaN.

Returns

Half-precision quiet NaN

static half half_float::detail::functions::nextafter ( half  from, half  to  )

inlinestatic

Enumeration implementation.

Parameters

from	number to increase/decrease
to	direction to enumerate into

Returns

next representable number

static half half_float::detail::functions::nexttoward ( half  from, long double  to  )

inlinestatic

Enumeration implementation.

Parameters

from	number to increase/decrease
to	direction to enumerate into

Returns

next representable number

static expr half_float::detail::functions::plus ( float  x, float  y  )

inlinestatic

Addition implementation.

Parameters

x	first operand
y	second operand

Returns

Half-precision sum stored in single-precision

static expr half_float::detail::functions::pow ( float  base, float  exp  )

inlinestatic

Power implementation.

Parameters

base	value to exponentiate
exp	power to expontiate to

Returns

function value stored in single-preicision

template<typename charT , typename traits >

static std::basic_istream<charT,traits>& half_float::detail::functions::read ( std::basic_istream< charT, traits > &  in, half &  arg  )

inlinestatic

Input implementation.

Parameters

in	stream to read from
arg	half to read into

Returns

reference to stream

static expr half_float::detail::functions::remainder ( float  x, float  y  )

inlinestatic

Remainder implementation.

Parameters

x	first operand
y	second operand

Returns

Half-precision division remainder stored in single-precision

static expr half_float::detail::functions::remquo ( float  x, float  y, int *  quo  )

inlinestatic

Remainder implementation.

Parameters

x	first operand
y	second operand
quo	address to store quotient bits at

Returns

Half-precision division remainder stored in single-precision

static half half_float::detail::functions::rint ( half  arg )

inlinestatic

Nearest integer implementation.

Parameters

arg	value to round

Returns

rounded value

static half half_float::detail::functions::round ( half  arg )

inlinestatic

Nearest integer implementation.

Parameters

arg	value to round

Returns

rounded value

static half half_float::detail::functions::scalbln ( half  arg, long  exp  )

inlinestatic

Scaling implementation.

Parameters

arg	number to scale
exp	power of two to scale by

Returns

scaled number

static bool half_float::detail::functions::signbit ( half  arg )

inlinestatic

Sign bit implementation.

Parameters

arg	value to check

Return values

true	if signed
false	if unsigned

static expr half_float::detail::functions::sin ( float  arg )

inlinestatic

Sine implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::sinh ( float  arg )

inlinestatic

Hyperbolic sine implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::sqrt ( float  arg )

inlinestatic

Square root implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::tan ( float  arg )

inlinestatic

Tan implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::tanh ( float  arg )

inlinestatic

Hyperbolic tangent implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static expr half_float::detail::functions::tgamma ( float  arg )

inlinestatic

Gamma implementation.

Parameters

arg	function argument

Returns

function value stored in single-preicision

static half half_float::detail::functions::trunc ( half  arg )

inlinestatic

Truncation implementation.

Parameters

arg	value to round

Returns

rounded value

template<typename charT , typename traits >

static std::basic_ostream<charT,traits>& half_float::detail::functions::write ( std::basic_ostream< charT, traits > &  out, float  arg  )

inlinestatic

Output implementation.

Parameters

out	stream to write to
arg	value to write

Returns

reference to stream

---

The documentation for this struct was generated from the following file:

• /Users/mthoeny/Development/gis_globeEngine/trunk/src/globeEngineCore/include/Half.h