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std::numeric_limits::round_error

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std::numeric_limits
 
static T round_error()
(hasta C++11)
static constexpr T round_error()
(desde C++11)
Devuelve el mayor error de redondeo posible en ULPs (unidades en el último lugar) como se define en ISO 10967, que puede variar desde 0,5 (redondeo al más cercano dígitos) a 1,0 (redondeo a cero o infinito). Esto sólo tiene sentido si std::numeric_limits<T>::is_integer == false .
Original:
Returns the largest possible rounding error in ULPs (units in the last place) as defined by ISO 10967, which can vary from 0.5 (rounding to the nearest digit) to 1.0 (rounding to zero or to infinity). It is only meaningful if std::numeric_limits<T>::is_integer == false.
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[editar] Valor de retorno

T std::numeric_limits<T>::round_error()
/* non-specialized */ T();
bool false
char 0
signed char 0
unsigned char 0
wchar_t 0
char16_t 0
char32_t 0
short 0
unsigned short 0
int 0
unsigned int 0
long 0
unsigned long 0
long long 0
unsigned long long 0
float 0.5F
double 0.5
long double 0.5L

[editar] Excepciones

noexcept specification:  
noexcept
  (desde C++11)

[editar] Ver también

[estático]
identifica el estilo de redondeo utilizado por el tipo
Original:
identifies the rounding style used by the type
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(miembro público estático constante) [editar]