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std::isnormal — cppreference.com

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Déclaré dans l'en-tête

<cmath>

bool isnormal( float arg );

(depuis C++11)

bool isnormal( double arg );

(depuis C++11)

bool isnormal( long double arg );

(depuis C++11)

Détermine si la donnée arg nombre à virgule flottante est normal, c'est à dire n'est ni nulle, inférieure à la normale, infini, ni NaN .

Original:

Determines if the given floating point number arg is normal, i.e. is neither zero, subnormal, infinite, nor NaN.

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Paramètres

arg -

valeur du point flottant

Original:

floating point value

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Retourne la valeur

true si arg est normal, false autrement

Original:

true if arg is normal, false otherwise

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Voir aussi

(C++11)

catégorise la valeur du point donné flottante

Original:

categorizes the given floating point value

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(fonction) [edit]

(C++11)

vérifie si le nombre donné a une valeur finie

Original:

checks if the given number has finite value

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(fonction) [edit]

(C++11)

vérifie si le nombre donné est infini

Original:

checks if the given number is infinite

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(fonction) [edit]

(C++11)

vérifie si le nombre donné est NaN

Original:

checks if the given number is NaN

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(fonction) [edit]