<tuple>, opérateurs

!=, opérateur

Compare des objets tuple pour déterminer s’ils sont inégaux.

template <class T1, class T2, ..., class TN,
    class U1, class U2, ..., class UN>
bool operator!=(const tuple<T1, T2, ..., TN>& tpl1,
    const tuple<U1, U2, ..., UN>& tpl2);

Paramètres

AMT
Type du Nième élément de tuple.

Notes

La fonction retourne false quand N est 0, sinon get<0>(tpl1) != get<0>(tpl2) || get<1>(tpl1) != get<1>(tpl2) || ... || get<N - 1>(tpl1) == get<N - 1>(tpl2).

Exemple

// std__tuple__operator_ne.cpp
// compile with: /EHsc
#include <tuple>
#include <iostream>

typedef std::tuple<int, double, int, double> Mytuple;
int main() {
    Mytuple c0(0, 1, 2, 3);

// display contents " 0 1 2 3"
    std::cout << " " << std::get<0>(c0);
    std::cout << " " << std::get<1>(c0);
    std::cout << " " << std::get<2>(c0);
    std::cout << " " << std::get<3>(c0);
    std::cout << std::endl;

    Mytuple c1 = std::make_tuple(4, 5, 6, 7);

// display contents " 4 5 6 7"
    std::cout << " " << std::get<0>(c0);
    std::cout << " " << std::get<1>(c0);
    std::cout << " " << std::get<2>(c0);
    std::cout << " " << std::get<3>(c0);
    std::cout << std::endl;

// display results of comparisons
    std::cout << std::boolalpha << " " << (c0 != c0);
    std::cout << std::endl;
    std::cout << std::boolalpha << " " << (c0 != c1);
    std::cout << std::endl;

    return (0);
}

0 1 2 3
0 1 2 3
false
true

operator<

Compare des objets tuple pour déterminer l’infériorité.

template <class T1, class T2, ..., class TN,
    class U1, class U2, ..., class UN>
bool operator<(const tuple<T1, T2, ..., TN>& tpl1,
    const tuple<U1, U2, ..., UN>& tpl2);

Paramètres

AMT
Type du Nième élément de tuple.

Notes

La fonction retourne true si N est supérieur à 0 et si la première valeur différente dans tpl1 est inférieure à la valeur correspondante dans tpl2 ; sinon, elle retourne false.

Exemple

// std__tuple__operator_lt.cpp
// compile with: /EHsc
#include <tuple>
#include <iostream>

typedef std::tuple<int, double, int, double> Mytuple;
int main() {
    Mytuple c0(0, 1, 2, 3);

// display contents " 0 1 2 3"
    std::cout << " " << std::get<0>(c0);
    std::cout << " " << std::get<1>(c0);
    std::cout << " " << std::get<2>(c0);
    std::cout << " " << std::get<3>(c0);
    std::cout << std::endl;

    Mytuple c1 = std::make_tuple(4, 5, 6, 7);

// display contents " 4 5 6 7"
    std::cout << " " << std::get<0>(c0);
    std::cout << " " << std::get<1>(c0);
    std::cout << " " << std::get<2>(c0);
    std::cout << " " << std::get<3>(c0);
    std::cout << std::endl;

// display results of comparisons
    std::cout << std::boolalpha << " " << (c0 < c0);
    std::cout << std::endl;
    std::cout << std::boolalpha << " " << (c0 < c1);
    std::cout << std::endl;

    return (0);
}

0 1 2 3
0 1 2 3
false
true

operator<=

Comparer des objets tuple pour déterminer l’infériorité ou l’égalité.

template <class T1, class T2, ..., class TN,
    class U1, class U2, ..., class UN>
bool operator<=(const tuple<T1, T2, ..., TN>& tpl1,
    const tuple<U1, U2, ..., UN>& tpl2);

Paramètres

AMT
Type du Nième élément de tuple.

Notes

La fonction retourne !(tpl2 < tpl1).

Exemple

// std__tuple__operator_le.cpp
// compile with: /EHsc
#include <tuple>
#include <iostream>

typedef std::tuple<int, double, int, double> Mytuple;
int main() {
    Mytuple c0(0, 1, 2, 3);

// display contents " 0 1 2 3"
    std::cout << " " << std::get<0>(c0);
    std::cout << " " << std::get<1>(c0);
    std::cout << " " << std::get<2>(c0);
    std::cout << " " << std::get<3>(c0);
    std::cout << std::endl;

    Mytuple c1 = std::make_tuple(4, 5, 6, 7);

// display contents " 4 5 6 7"
    std::cout << " " << std::get<0>(c0);
    std::cout << " " << std::get<1>(c0);
    std::cout << " " << std::get<2>(c0);
    std::cout << " " << std::get<3>(c0);
    std::cout << std::endl;

// display results of comparisons
    std::cout << std::boolalpha << " " << (c0 <= c0);
    std::cout << std::endl;
    std::cout << std::boolalpha << " " << (c1 <= c0);
    std::cout << std::endl;

    return (0);
}

0 1 2 3
0 1 2 3
true
false

operator==

Compare des objets tuple pour déterminer s’ils sont égaux.

template <class T1, class T2, ..., class TN,
    class U1, class U2, ..., class UN>
bool operator==(const tuple<T1, T2, ..., TN>& tpl1,
    const tuple<U1, U2, ..., UN>& tpl2);

Paramètres

AMT
Type du Nième élément de tuple.

Notes

La fonction retourne true quand N est 0, sinon get<0>(tpl1) == get<0>(tpl2) && get<1>(tpl1) == get<1>(tpl2) && ... && get<N - 1>(tpl1) == get<N - 1>(tpl2).

Exemple

// std__tuple__operator_eq.cpp
// compile with: /EHsc
#include <tuple>
#include <iostream>

typedef std::tuple<int, double, int, double> Mytuple;
int main() {
    Mytuple c0(0, 1, 2, 3);

// display contents " 0 1 2 3"
    std::cout << " " << std::get<0>(c0);
    std::cout << " " << std::get<1>(c0);
    std::cout << " " << std::get<2>(c0);
    std::cout << " " << std::get<3>(c0);
    std::cout << std::endl;

    Mytuple c1 = std::make_tuple(4, 5, 6, 7);

// display contents " 4 5 6 7"
    std::cout << " " << std::get<0>(c0);
    std::cout << " " << std::get<1>(c0);
    std::cout << " " << std::get<2>(c0);
    std::cout << " " << std::get<3>(c0);
    std::cout << std::endl;

// display results of comparisons
    std::cout << std::boolalpha << " " << (c0 == c0);
    std::cout << std::endl;
    std::cout << std::boolalpha << " " << (c0 == c1);
    std::cout << std::endl;

    return (0);
}

0 1 2 3
0 1 2 3
true
false

operator>

Compare des objets tuple pour déterminer la supériorité.

template <class T1, class T2, ..., class TN,
    class U1, class U2, ..., class UN>
bool operator>(const tuple<T1, T2, ..., TN>& tpl1,
    const tuple<U1, U2, ..., UN>& tpl2);

Paramètres

AMT
Type du Nième élément de tuple.

Notes

La fonction retourne tpl2 < tpl1.

Exemple

// std__tuple__operator_gt.cpp
// compile with: /EHsc
#include <tuple>
#include <iostream>

typedef std::tuple<int, double, int, double> Mytuple;
int main() {
    Mytuple c0(0, 1, 2, 3);

// display contents " 0 1 2 3"
    std::cout << " " << std::get<0>(c0);
    std::cout << " " << std::get<1>(c0);
    std::cout << " " << std::get<2>(c0);
    std::cout << " " << std::get<3>(c0);
    std::cout << std::endl;

    Mytuple c1 = std::make_tuple(4, 5, 6, 7);

// display contents " 4 5 6 7"
    std::cout << " " << std::get<0>(c0);
    std::cout << " " << std::get<1>(c0);
    std::cout << " " << std::get<2>(c0);
    std::cout << " " << std::get<3>(c0);
    std::cout << std::endl;

// display results of comparisons
    std::cout << std::boolalpha << " " << (c0 > c0);
    std::cout << std::endl;
    std::cout << std::boolalpha << " " << (c1 > c0);
    std::cout << std::endl;

    return (0);
}

0 1 2 3
0 1 2 3
false
true

operator>=

Compare des objets tuple pour déterminer la supériorité ou l’égalité.

template <class T1, class T2, ..., class TN,
    class U1, class U2, ..., class UN>
bool operator>=(const tuple<T1, T2, ..., TN>& tpl1,
    const tuple<U1, U2, ..., UN>& tpl2);

Paramètres

AMT
Type du Nième élément de tuple.

Notes

La fonction retourne !(tpl1 < tpl2).

Exemple

// std__tuple__operator_ge.cpp
// compile with: /EHsc
#include <tuple>
#include <iostream>

typedef std::tuple<int, double, int, double> Mytuple;
int main() {
    Mytuple c0(0, 1, 2, 3);

// display contents " 0 1 2 3"
    std::cout << " " << std::get<0>(c0);
    std::cout << " " << std::get<1>(c0);
    std::cout << " " << std::get<2>(c0);
    std::cout << " " << std::get<3>(c0);
    std::cout << std::endl;

    Mytuple c1 = std::make_tuple(4, 5, 6, 7);

// display contents " 4 5 6 7"
    std::cout << " " << std::get<0>(c0);
    std::cout << " " << std::get<1>(c0);
    std::cout << " " << std::get<2>(c0);
    std::cout << " " << std::get<3>(c0);
    std::cout << std::endl;

// display results of comparisons
    std::cout << std::boolalpha << " " << (c0 >= c0);
    std::cout << std::endl;
    std::cout << std::boolalpha << " " << (c0 >= c1);
    std::cout << std::endl;

    return (0);
}

0 1 2 3
0 1 2 3
true
false