Espaces de noms
Variantes

    FE_DIVBYZERO, FE_INEXACT, FE_INVALID, FE_OVERFLOW, FE_UNDERFLOW, FE_ALL_EXCEPT

    De cppreference.com
    < c | numeric | fenv

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    <metanoindex/>

     
    C
     
    Numerics
     
    Flottant environnement point
    Fonctions
    Original:
    Functions
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    feclearexcept (C99)
    fetestexcept (C99)
    feraiseexcept (C99)
    fegetexceptflag
    fesetexceptflag    		 (C99)
    (C99)
    fegetround
    fesetround    		 (C99)
    (C99)
    fegetenv
    fesetenv    		 (C99)
    feholdexcept (C99)
    feupdateenv (C99)
    Macro constantes
    Original:
    Macro constants
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    FE_ALL_EXCEPT
    FE_DIVBYZERO
    FE_INEXACT
    FE_INVALID
    FE_OVERFLOW
    FE_UNDERFLOW    		 (C99)
    FE_DOWNWARD
    FE_TONEAREST
    FE_TOWARDZERO
    FE_UPWARD    		 (C99)
    FE_DFL_ENV (C99)
     
    <tbody> </tbody>
    Déclaré dans l'en-tête <<fenv.h>>
    #define FE_DIVBYZERO /*implementation defined power of 2*/
    #define FE_INEXACT /*implementation defined power of 2*/
    #define FE_INVALID /*implementation defined power of 2*/
    #define FE_OVERFLOW /*implementation defined power of 2*/
    #define FE_UNDERFLOW /*implementation defined power of 2*/
    #define FE_ALL_EXCEPT FE_DIVBYZERO | FE_INEXACT | \ FE_INVALID | FE_OVERFLOW | \ FE_UNDERFLOW
    Toutes ces constantes macro (sauf FE_ALL_EXCEPT) à étendre entiers des expressions constantes qui sont des puissances de 2 distinctes, qui identifient de façon unique tous soutenus exceptions de virgule flottante. Chaque macro n'est définie que si elle est soutenue .
    Original:
    All these macro constants (except FE_ALL_EXCEPT) expand to integer constant expressions that are distinct powers of 2, which uniquely identify all supported floating-point exceptions. Each macro is only defined if it is supported.
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    Le FE_ALL_EXCEPT macro constante, qui se développe pour un OU binaire de tous les FE_* autre, est toujours définie et est nul si exceptions de virgule flottante ne sont pas pris en charge par la mise en œuvre .
    Original:
    The macro constant FE_ALL_EXCEPT, which expands to the bitwise OR of all other FE_*, is always defined and is zero if floating-point exceptions are not supported by the implementation.
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    Constante
    Original:
    Constant
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    		 Explanation
    FE_DIVBYZERO
    division par zéro s'est produite lors de l'opération précédente à virgule flottante
    Original:
    division by zero occurred during the earlier floating-point operation
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    FE_INEXACT
    inexactes résultat: l'arrondissement était nécessaire pour stocker le résultat de l'opération précédente à virgule flottante
    Original:
    inexact result: rounding was necessary to store the result of the earlier floating-point operation
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    FE_INVALID
    opération non valide: l'opération plus tôt à virgule flottante ne pouvait pas effectuée
    Original:
    invalid operation: the earlier floating-point operation could not performed
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    FE_OVERFLOW
    le résultat de la première opération à virgule flottante était trop grand pour être représentable
    Original:
    the result of the earlier floating-point operation was too large to be representable
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    FE_UNDERFLOW
    le résultat de l'opération précédente à virgule flottante était inférieure à la normale
    Original:
    the result of the earlier floating-point operation was subnormal
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    FE_ALL_EXCEPT
    OU binaire entre toutes prises en charge exceptions de virgule flottante
    Original:
    bitwise OR of all supported floating-point exceptions
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    La mise en œuvre peut définir des constantes macro supplémentaires <fenv.h> pour identifier d'autres exceptions de virgule flottante. Tous ces constantes commencent par FE_ suivie d'au moins une lettre majuscule .
    Original:
    The implementation may define additional macro constants in <fenv.h> to identify additional floating-point exceptions. All such constants begin with FE_ followed by at least one uppercase letter.
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    Exemple

    This section is incomplete
    Reason: no example

    Voir aussi

    C++ documentation for floating point exception macros