Kommentar
Åtkomst till den här sidan kräver auktorisering. Du kan prova att logga in eller ändra kataloger.
Åtkomst till den här sidan kräver auktorisering. Du kan prova att ändra kataloger.
Compare tuple objects for less or equal.
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);
Parameters
- TN
The type of the Nth tuple elemment.
Remarks
The function returns !(tpl2 < tpl1).
Example
// std_tr1__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
Requirements
Header: <tuple>
Namespace: std