Espaços nominais
Variantes
Acções

std::feupdatedenv

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< cpp‎ | numeric‎ | fenv

 
 
Biblioteca numéricos
Funções matemáticas comuns
De ponto flutuante ambiente
Números complexos
Matrizes numéricas
Pseudo-aleatório de geração de números
Tempo de compilação aritmética racional (C++11)
Genéricos operações numéricas
Original:
Generic numeric operations
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iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
De ponto flutuante ambiente
Funções
Original:
Functions
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feclearexcept(C++11)
fetestexcept(C++11)
feraiseexcept(C++11)
fegetexceptflag
fesetexceptflag
(C++11)
(C++11)
fegetround
fesetround
(C++11)
(C++11)
fegetenv
fesetenv
(C++11)
feholdexcept(C++11)
feupdateenv(C++11)
Constantes de macros
Original:
Macro constants
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FE_ALL_EXCEPT
FE_DIVBYZERO
FE_INEXACT
FE_INVALID
FE_OVERFLOW
FE_UNDERFLOW
(C++11)
FE_DOWNWARD
FE_TONEAREST
FE_TOWARDZERO
FE_UPWARD
(C++11)
FE_DFL_ENV(C++11)
 
Defined in header <cfenv>
int feupdateenv( const std::fenv_t* envp )
(a partir do C++ 11)
Primeiro, lembra os atualmente levantadas exceções de ponto flutuante, em seguida, restaura o ambiente de ponto flutuante do objeto apontado por envp (semelhante ao std::fesetenv), então levanta as exceções de ponto flutuante que foram salvos.
Original:
First, remembers the currently raised floating-point exceptions, then restores the floating-point environment from the object pointed to by envp (similar to std::fesetenv), then raises the floating-point exceptions that were saved.
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Esta função pode ser usada para finalizar o modo non-stop estabelecida por uma chamada anterior para std::feholdexcept.
Original:
This function may be used to end the non-stop mode established by an earlier call to std::feholdexcept.
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[editar] Parâmetros

envp -
ponteiro para o objeto do tipo std::fenv_t definido por uma chamada anterior a std::feholdexcept ou std::fegetenv ou igual a FE_DFL_ENV
Original:
pointer to the object of type std::fenv_t set by an earlier call to std::feholdexcept or std::fegetenv or equal to FE_DFL_ENV
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[editar] Valor de retorno

0 em caso de sucesso, não-zero, caso contrário.
Original:
0 on success, non-zero otherwise.
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[editar] Veja também

poupa o meio ambiente, limpa todos os sinalizadores de status e ignora todos os erros futuros
Original:
saves the environment, clears all status flags and ignores all future errors
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(função) [edit]
salva ou restaura o ambiente actual ponto flutuante
Original:
saves or restores the current floating point environment
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(função) [edit]
ambiente padrão de ponto flutuante
Original:
default floating-point environment
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(macro constante) [edit]