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    signbit

    De cppreference.com
    < c | numeric | math

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    C
     
    Números
     
    Funciones matemáticas comunes
    Funciones
    Original:
    Functions
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    Operaciones básicas
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    Basic operations
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    (C99)
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    (C99)(C99)(C99)
    Funciones exponenciales
    Original:
    Exponential functions
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    (C99)
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    Funciones de energía
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    Power functions
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    (C99)
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    Funciones trigonométricas e hiperbólicas
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    Trigonometric and hyperbolic functions
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    (C99)
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    Error gamma y funciones
    Original:
    Error and gamma functions
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    Más cerca de las operaciones con enteros en coma flotante
    Original:
    Nearest integer floating point operations
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    (C99)(C99)(C99)
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    Funciones de punto flotante de manipulación
    Original:
    Floating point manipulation functions
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    (C99)(C99)
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    Clasificación
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    Classification
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    (C99)
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    Constantes Macro
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    Macro constants
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    <tbody> </tbody>
    Definido en el archivo de encabezado <math.h>
    #define signbit(arg) /* implementation defined */
    		 (desde C99)
    Determina si el dado arg número de punto flotante es negativo. La macro devuelve un valor entero .
    Original:
    Determines if the given floating point number arg is negative. The macro returns an integral value.
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    Parámetros

    arg -
    flotando valor en puntos
    Original:
    floating point value
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    Valor de retorno

    Valor distinto de cero si arg integral es negativa, 0 lo contrario
    Original:
    Nonzero integral value if arg is negative, 0 otherwise
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    Ver también
    valor absoluto de un valor de punto flotante (|x|)
    Original:
    absolute value of a floating point value (|x|)
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    (función) [editar]
    (C99)
    copia el signo de un valor de punto flotante
    Original:
    copies the sign of a floating point value
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    (función) [editar]
    Documentación de C++ para signbit