FE_DIVBYZERO, FE_INEXACT, FE_INVALID, FE_OVERFLOW, FE_UNDERFLOW, FE_ALL_EXCEPT

 

C

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Flotando entorno punto

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.

feclearexcept (C99)

fetestexcept (C99)

feraiseexcept (C99)

fegetexceptflagfesetexceptflag (C99)(C99)

fegetroundfesetround (C99)(C99)

fegetenvfesetenv (C99)

feholdexcept (C99)

feupdateenv (C99)

Constantes Macro Original: Macro constants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

FE_ALL_EXCEPTFE_DIVBYZEROFE_INEXACTFE_INVALIDFE_OVERFLOWFE_UNDERFLOW (C99)

FE_DOWNWARDFE_TONEARESTFE_TOWARDZEROFE_UPWARD (C99)

FE_DFL_ENV (C99)

 

Definido en el archivo de encabezado <<fenv.h>>
#define FE_DIVBYZERO    /*implementation defined power of 2*/		(desde C99)
#define FE_INEXACT      /*implementation defined power of 2*/		(desde C99)
#define FE_INVALID      /*implementation defined power of 2*/		(desde C99)
#define FE_OVERFLOW     /*implementation defined power of 2*/		(desde C99)
#define FE_UNDERFLOW    /*implementation defined power of 2*/		(desde C99)
#define FE_ALL_EXCEPT  FE_DIVBYZERO | FE_INEXACT | \                        FE_INVALID | FE_OVERFLOW |  \                        FE_UNDERFLOW		(desde C99)

Todas estas constantes macro (excepto FE_ALL_EXCEPT) extender a expresiones constantes enteros que son potencias distintas de 2, que identifican de forma única todos apoyados excepciones de punto flotante. Cada macro se define sólo si es respaldada .

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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El FE_ALL_EXCEPT macro constante, que se expande a la OR bit a bit de todos FE_* otra parte, siempre se define y es cero si excepciones de punto flotante no son compatibles con la puesta en práctica .

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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Constant Original: Constant The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Explanation
FE_DIVBYZERO	la división por cero se produjo durante la operación anterior de punto flotante Original: division by zero occurred during the earlier floating-point operation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
FE_INEXACT	inexacto resultado: redondeo era necesario para almacenar el resultado de la operación anterior de punto flotante Original: inexact result: rounding was necessary to store the result of the earlier floating-point operation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
FE_INVALID	operación no válida: la operación de punto flotante antes no podía realizar Original: invalid operation: the earlier floating-point operation could not performed The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
FE_OVERFLOW	el resultado de la anterior operación de punto flotante era demasiado grande para ser representable Original: the result of the earlier floating-point operation was too large to be representable The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
FE_UNDERFLOW	el resultado de la operación anterior de punto flotante era subnormal Original: the result of the earlier floating-point operation was subnormal The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
FE_ALL_EXCEPT	OR bit a bit de todos los soportados excepciones de punto flotante Original: bitwise OR of all supported floating-point exceptions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

La aplicación puede definir constantes adicionales macro en <fenv.h> para identificar otras excepciones de punto flotante. Todas las constantes tales comenzar con FE_ seguido por al menos una letra mayúscula .

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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Ver también

Documentación de C++ para floating point exception macros