Defined in header <iterator> | ||
|---|---|---|
template< class I1, class I2 = I1 >
concept indirectly_swappable =
std::indirectly_readable<I1> &&
std::indirectly_readable<I2> &&
requires( const I1 i1, const I2 i2 )
{
ranges::iter_swap(i1, i1);
ranges::iter_swap(i1, i2);
ranges::iter_swap(i2, i1);
ranges::iter_swap(i2, i2);
};
| (since C++20) |
The concept indirectly_swappable specifies a relationship between two types respectively modelling std::indirectly_readable, where their referenced types can be swapped.
I1 and I2 model indirectly_swappable only if all concepts it subsumes are modeled.
Expressions declared in requires-expressions of the standard library concepts are required to be equality-preserving (except where stated otherwise).
|
(C++20) | specifies that a type is indirectly readable by applying operator * (concept) |
|
(C++20) | swaps the values referenced by two dereferenceable objects (customization point object) |
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