std::chrono::duration::operator+(unary), std::chrono::duration::operator-(unary)

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C++

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Bibliothèque pour les entrées/sorties

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Bibliothèque pour les expressions régulières (C++11)

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Bibliothèque d'utilitaires

Soutien des types fondamentaux (basic types, RTTI, type traits)

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initializer_list (C++11)

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rel_ops::operator!= rel_ops::operator> rel_ops::operator<= rel_ops::operator>=

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pair

tuple (C++11)

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piecewise_construct (C++11)

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swap

forward (C++11)

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declval (C++11)

 

Utilitaires date et l'heure

time_point (C++11)

duration (C++11)

system_clock (C++11)

steady_clock (C++11)

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C-forme de la date et de l'heure

 

std::chrono::duration

Les fonctions membres Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

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%=

Tiers fonctions Original: Non-member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

common_type

operator+ operator- operator* operator/ operator%

operator== operator!= operator< operator<= operator> operator>=

duration_cast

Classes d'aide Original: Helper classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

treat_as_floating_point

duration_values

 

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constexpr duration operator+() const;	(1)
constexpr duration operator-() const;	(2)

Met en œuvre unaires moins unaire plus et pour les durées .

Original:

Implements unary plus and unary minus for the durations.

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Si rep_ est une variable membre qui détient le nombre de tiques dans un objet durée

Original:

If rep_ is a member variable holding the number of ticks in a duration object,

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1)

Equivalent à return *this;

Original:

Equivalent to return *this;

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2)

Equivalent à return duration(-rep_);

Original:

Equivalent to return duration(-rep_);

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Paramètres

(Aucun)

Original:

(none)

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Retourne la valeur

1)

une copie de cet objet durée

Original:

a copy of this duration object

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2)

une copie de cet objet durée, avec le nombre de graduations inversées

Original:

a copy of this duration object, with the number of ticks negated

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Exemple

#include <chrono>
#include <iostream>

int main()
{
    std::chrono::seconds s1(10);
    std::chrono::seconds s2 = -s1;

    std::cout << "negated 10 seconds are " << s2.count() << " seconds\n";
}

Résultat :

negated 10 seconds are -10 seconds

Voir aussi

operator++ operator++(int) operator-- operator--(int)	incrémente ou décrémente le nombre de cycles Original: increments or decrements the tick count The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique)
operator+ operator- operator* operator/ operator%	met en œuvre des opérations arithmétiques avec des durées comme arguments Original: implements arithmetic operations with durations as arguments The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction générique)