std::isnan

 

C++

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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)
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exp exp2 (C++11) expm1 (C++11)	log log10 log1p (C++11) log2 (C++11)
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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)
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fpclassify (C++11) isfinite (C++11) isinf (C++11) isnan (C++11) isnormal (C++11) signbit (C++11)	isgreater (C++11) isgreaterequal (C++11) isless (C++11) islessequal (C++11) islessgreater (C++11) isunordered (C++11)
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Defined in header <cmath>
bool isnan( float arg );		(desde C++11)
bool isnan( double arg );		(desde C++11)
bool isnan( long double arg );		(desde C++11)

Determina si el dado arg número de punto flotante no-un número-es (NaN) .

Original:

Determines if the given floating point number arg is not-a-number (NaN).

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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.

Valor de retorno

true si arg es NaN, false lo contrario

Original:

true if arg is NaN, false otherwise

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Ver también

fpclassify (C++11)	clasifica el valor dado en coma flotante Original: categorizes the given 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. (función)
isfinite (C++11)	Comprueba si el número dado tiene un valor finito Original: checks if the given number has finite value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)
isinf (C++11)	comprueba si el número dado es infinito Original: checks if the given number is infinite The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)
isnormal (C++11)	comprueba si el número dado es normal Original: checks if the given number is normal The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)
isunordered (C++11)	Comprueba si dos valores de punto flotante están desordenados Original: checks if two floating-point values are unordered The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)