Varianti

std::chrono::duration::count

Da cppreference.com.

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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)
 
 
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
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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
 
<tbody> </tbody>
constexpr rep count() const;
Restituisce il numero di segni di graduazione per tutta la durata.
Original:
Returns the number of ticks for this duration.
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Parametri

(Nessuno)
Original:
(none)
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Valore di ritorno

Il numero di segni di graduazione per tutta la durata.
Original:
The number of ticks for this duration.
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Esempio

#include <chrono>
#include <iostream>
int main()
{
    std::chrono::milliseconds ms{3}; // 3 milliseconds
    // 6000 microseconds constructed from 3 milliseconds
    std::chrono::microseconds us = 2*ms;
    // 30Hz clock using fractional ticks
    std::chrono::duration<double, std::ratio<1, 30>> hz30(3.5);

    std::cout <<  "3 ms duration has " << ms.count() << " ticks\n"
              <<  "6000 us duration has " << us.count() << " ticks\n"
              <<  "3.5 30Hz duration has " << hz30.count() << " ticks\n";       
}

Output:

3 ms duration has 3 ticks
6000 us duration has 6000 ticks
3.5 30Hz duration has 3.5 ticks

Vedi anche

converte una durata ad un altro, con un intervallo di zecca diversa
Original:
converts a duration to another, with a different tick interval
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(funzione di modello) [modifica]