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

From cppreference.com
< cpp‎ | container‎ | stack

[edit template]

template< class T, class Container > bool operator==( stack<T,Container>& lhs, stack<T,Container>& rhs ); | (1) |
template< class T, class Container > bool operator!=( stack<T,Container>& lhs, stack<T,Container>& rhs ); | (2) |
template< class T, class Container > bool operator<( stack<T,Container>& lhs, stack<T,Container>& rhs ); | (3) |
template< class T, class Container > bool operator<=( stack<T,Container>& lhs, stack<T,Container>& rhs ); | (4) |
template< class T, class Container > bool operator>( stack<T,Container>& lhs, stack<T,Container>& rhs ); | (5) |
template< class T, class Container > bool operator>=( stack<T,Container>& lhs, stack<T,Container>& rhs ); | (6) |

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

true if the corresponding comparison yields true, false otherwise.

### [edit] Complexity

Linear in the size of the container

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