Namespaces
Variants
Views
Actions

operator==,!=,<,<=,>,>=,<=>(std::stack)

From cppreference.com
< cpp‎ | container‎ | stack
template< class T, class Container >
bool operator==( const std::stack<T,Container>& lhs, const std::stack<T,Container>& rhs );
(1)
template< class T, class Container >
bool operator!=( const std::stack<T,Container>& lhs, const std::stack<T,Container>& rhs );
(2)
template< class T, class Container >
bool operator<( const std::stack<T,Container>& lhs, const std::stack<T,Container>& rhs );
(3)
template< class T, class Container >
bool operator<=( const std::stack<T,Container>& lhs, const std::stack<T,Container>& rhs );
(4)
template< class T, class Container >
bool operator>( const std::stack<T,Container>& lhs, const std::stack<T,Container>& rhs );
(5)
template< class T, class Container >
bool operator>=( const std::stack<T,Container>& lhs, const std::stack<T,Container>& rhs );
(6)
template< class T, std::three_way_comparable Container >

std::compare_three_way_result_t<Container>

    operator<=>( const std::stack<T,Container>& lhs, const std::stack<T,Container>& rhs );
(7) (since C++20)

Compares the contents of the underlying containers of two container adaptors. The comparison is done by applying the corresponding operator to the underlying containers.

[edit] Parameters

lhs, rhs - container adaptors whose contents to compare
-
T must meet the requirements of EqualityComparable.

[edit] Return value

1-6) true if the corresponding comparison yields true, false otherwise.
7) Result of three-way comparison on underlying containers.

[edit] Complexity

Linear in the size of the container