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std::ldexp

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< cpp‎ | numeric‎ | math

 
 
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En tiempo de compilación aritmética racional (C++11)
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Generic numeric operations
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iota(C++11)
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Funciones
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Functions
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Operaciones básicas
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Basic operations
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ldexp
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Constantes Macro
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Macro constants
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FP_NORMAL
FP_SUBNORMAL
FP_ZERO
FP_INFINITE
FP_NAN
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(C++11)
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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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[editar] Parámetros

arg -
flotando valor en puntos
Original:
floating point value
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exp -
valor entero
Original:
integer value
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[editar] 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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[editar] Ver también

se descompone un número en mantisa y una potencia de 2
Original:
decomposes a number into significand and a power of 2
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(función) [edit]
(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
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(función) [edit]