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

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.

# Declarations

template< class T, class Container >
bool operator==( const std::queue<T, Container>& lhs,
const std::queue<T, Container>& rhs );

template< class T, class Container >
bool operator!=( const std::queue<T, Container>& lhs,
const std::queue<T, Container>& rhs );

template< class T, class Container >
bool operator< ( const std::queue<T, Container>& lhs,
const std::queue<T, Container>& rhs );

template< class T, class Container >
bool operator<=( const std::queue<T, Container>& lhs,
const std::queue<T, Container>& rhs );

template< class T, class Container >
bool operator> ( const std::queue<T, Container>& lhs,
const std::queue<T, Container>& rhs );

template< class T, class Container >
bool operator>=( const std::queue<T, Container>& lhs,
const std::queue<T, Container>& rhs );

template< class T, std::three_way_comparable Container >
std::compare_three_way_result_t<Container>
operator<=>( const std::queue<T, Container>& lhs,
const std::queue<T, Container>& rhs );

(since C++20)

# Parameters

lhs, rhs: container adaptors whose contents to compare

# Example

This section is incompleteReason: no example

# Defect reports

DR	Applied to	Behavior as published	Correct behavior
LWG 410	C++98	the semantics of operators !=, >, <= and >= were missing	added