std::ldexp

 

C++

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Floating-point medio ambiente

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En tiempo de compilación aritmética racional (C++11)

Genéricos operaciones numéricas Original: Generic numeric operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

iota (C++11)

accumulate

inner_product

adjacent_difference

partial_sum

 

Funciones matemáticas comunes

Funciones Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Operaciones básicas Original: Basic operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
abs(int) labs llabs imaxabs (C++11) abs(float) fabs div ldiv lldiv imaxdiv (C++11) fmod	remainder (C++11) remquo (C++11) fma (C++11) fmax (C++11) fmin (C++11) fdim (C++11) nan nanf nanl (C++11) (C++11) (C++11)
Funciones exponenciales Original: Exponential functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
exp exp2 (C++11) expm1 (C++11)	log log10 log1p (C++11) log2 (C++11)
Funciones de energía Original: Power functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
sqrt cbrt (C++11)	hypot (C++11) pow
Funciones trigonométricas e hiperbólicas Original: Trigonometric and hyperbolic functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
sin cos tan asin acos atan atan2	sinh cosh tanh asinh (C++11) acosh (C++11) atanh (C++11)

Error gamma y funciones Original: Error and gamma functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
erf (C++11) erfc (C++11)	lgamma (C++11) tgamma (C++11)
Más cerca de las operaciones con enteros en coma flotante Original: Nearest integer floating point operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ceil floor round lround llround (C++11) (C++11) (C++11)	trunc (C++11) nearbyint (C++11) rint lrint llrint (C++11) (C++11) (C++11)
Funciones de punto flotante de manipulación Original: Floating point manipulation functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ldexp scalbn scalbln (C++11) (C++11) ilogb (C++11) logb (C++11)	frexp modf nextafter nexttoward (C++11) (C++11) copysign (C++11)
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Constantes Macro Original: Macro constants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
HUGE_VALF HUGE_VAL HUGE_VALL (C++11) (C++11) INFINITY (C++11) NAN (C++11) math_errhandling MATH_ERRNO MATH_ERREXCEPT (C++11)	FP_NORMAL FP_SUBNORMAL FP_ZERO FP_INFINITE FP_NAN (C++11) (C++11) (C++11) (C++11) (C++11)

 

Defined in header <cmath>
float       ldexp( float arg, int exp );
double      ldexp( double arg, int exp );
long double ldexp( long double arg, int exp );
double      ldexp( Integral arg, int exp );		(desde C++11)

Multiplica un valor de punto flotante arg por 2 elevado a la potencia exp .

Original:

Multiplies an floating point value arg by 2 raised to power exp.

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Parámetros

arg	-	flotando valor en puntos Original: floating point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
exp	-	valor entero Original: integer value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valor de retorno

vuelve x×2exp

Original:

returns x×2exp

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Si el resultado es demasiado grande para el tipo subyacente, se produce error de rango y devuelve HUGE_VAL .

Original:

If the result is too large for the underlying type, range error occurs and HUGE_VAL is returned.

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Ver también

frexp	se descompone un número en mantisa y una potencia de 2 Original: decomposes a number into significand and a power of 2 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)
scalbn scalbln (C++11) (C++11)	multiplica un número por FLT_RADIX elevado a una potencia Original: multiplies a number by FLT_RADIX raised to a power The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)