Espaços nominais
Variantes
    Ações

      FE_DIVBYZERO, FE_INEXACT, FE_INVALID, FE_OVERFLOW, FE_UNDERFLOW, FE_ALL_EXCEPT

      De cppreference.com
      < c | numeric | fenv

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      <metanoindex/>

       
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      Flutuando ponto ambiente
      Funções
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      Functions
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      Constantes de macros
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      Macro constants
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      <tbody> </tbody>
      Definido no cabeçalho <<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
      Todas essas constantes macro (exceto FE_ALL_EXCEPT) expandir para inteiros expressões constantes que são potências distintas de 2, que identificam todas as suportadas exceções de ponto flutuante. Cada macro é definida somente se for suportado.
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      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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      O FE_ALL_EXCEPT macro constante, que se expande para o OR bit a bit de todos FE_* outro, é sempre definida e é zero se exceções de ponto flutuante não são suportados pela implementação.
      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
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      Constant
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      		 Explanation
      FE_DIVBYZERO
      divisão por zero ocorreu durante a operação antes de ponto flutuante
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      division by zero occurred during the earlier floating-point operation
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      FE_INEXACT
      inexato resultado: arredondamento era necessário para armazenar o resultado da operação anterior de ponto flutuante
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      inexact result: rounding was necessary to store the result of the earlier floating-point operation
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      FE_INVALID
      operação inválida: a operação antes de ponto flutuante não poderia realizada
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      invalid operation: the earlier floating-point operation could not performed
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      FE_OVERFLOW
      o resultado da operação de ponto flutuante anterior era grande demais para ser representável
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      the result of the earlier floating-point operation was too large to be representable
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      FE_UNDERFLOW
      o resultado da operação anterior de ponto flutuante foi subnormal
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      the result of the earlier floating-point operation was subnormal
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      FE_ALL_EXCEPT
      OR bit a bit de todas as exceções de ponto flutuante
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      bitwise OR of all supported floating-point exceptions
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      A implementação pode definir constantes macro adicionais em <fenv.h> para identificar outras exceções de ponto flutuante. Todas as constantes de tais começam com FE_ seguido por, pelo menos, uma letra maiúscula.
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      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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      Exemplo

      Esta seção está incompleta
      Motivo: sem exemplo

      Veja também

      C++ documentation for floating point exception macros