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std::chrono::duration::operator+=, -=, *=, /=, %=

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< cpp‎ | chrono‎ | duration

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C++
 
Utilità libreria
Tipo di supporto (basic types, RTTI, type traits)
Gestione della memoria dinamica
La gestione degli errori
Programma di utilità
Funzioni variadic
Data e ora
Funzione oggetti
initializer_list(C++11)
bitset
hash(C++11)
Gli operatori relazionali
Original:
Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Coppie e tuple
Original:
Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Swap, in avanti e spostare
Original:
Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
Data e ora utilità
 
std::chrono::duration
Membri funzioni
Original:
Member functions
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duration::duration
duration::operator=
duration::count
duration::zero
duration::min
duration::max
duration::operator+
duration::operator-
duration::operator++
duration::operator--
duration::operator+=
duration::operator-=
duration::operator*=
duration::operator/=
duration::operator%=
Non membri funzioni
Original:
Non-member functions
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common_type
operator+
operator-
operator*
operator/
operator%
operator==
operator!=
operator<
operator<=
operator>
operator>=
duration_cast
Helper classi
Original:
Helper classes
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treat_as_floating_point
duration_values
 
duration& operator+=(const duration& d);
 (1)
duration& operator-=(const duration& d);
 (2)
duration& operator*=(const rep& rhs);
 (3)
duration& operator/=(const rep& rhs);
 (4)
duration& operator%=(const rep& rhs);
 (5)
duration& operator%=(const duration& rhs);
 (6)
Esegue compiti composti tra due durate con lo stesso periodo o tra una durata e un valore conteggio.
Original:
Performs compound assignments between two durations with the same period or between a duration and a tick count value.
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Se rep_ è la variabile membro che esercita il numero di zecche in questo oggetto durata
Original:
If rep_ is the member variable holding the number of ticks in this duration object,
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1)
Equivalente a rep_ += d.count(); return *this;
Original:
Equivalent to rep_ += d.count(); return *this;
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2)
Equivalente a rep_ -= d.count(); return *this;
Original:
Equivalent to rep_ -= d.count(); return *this;
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3)
Equivalente a rep_ *= rhs; return *this;
Original:
Equivalent to rep_ *= rhs; return *this;
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4)
Equivalente a rep_ /= rhs; return *this;
Original:
Equivalent to rep_ /= rhs; return *this;
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5)
Equivalente a rep_ %= rhs; return *this;
Original:
Equivalent to rep_ %= rhs; return *this;
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6)
Equivalente a rep_ %= d.count(); return *this;
Original:
Equivalent to rep_ %= d.count(); return *this;
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Indice

[modifica] Parametri

d -
durata sulla destra dell'operatore
Original:
duration on the right-hand side of the operator
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rhs -
numero di tacche sul lato destro dell'operatore
Original:
number of ticks on the right-hand side of the operator
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[modifica] Valore di ritorno

Un riferimento a questa durata dopo modifica
Original:
A reference to this duration after modification
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[modifica] Esempio

#include <chrono>
#include <iostream>
 
int main()
{
    std::chrono::minutes m(11);
    m *= 2;
    m += std::chrono::hours(10); // hours implicitly convert to minutes
    std::cout << m.count() << " minutes equals "
              << std::chrono::duration_cast<std::chrono::hours>(m).count() 
              << " hours and ";
    m %= std::chrono::hours(1);
    std::cout << m.count() << " minutes\n";
}

Output: 

622 minutes equals 10 hours and 22 minutes

[modifica] Vedi anche
incrementa o decrementa il conteggio
Original:
increments or decrements the tick count
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(metodo pubblico) [modifica]
implementa operazioni aritmetiche con durate come argomenti
Original:
implements arithmetic operations with durations as arguments
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(funzione di modello) [modifica]
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