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array::swap
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Exchange the given values.

Synopsis

Defined in header <boost/json/array.hpp>

void
swap(
    array& lhs,
    array& rhs);
Description

Exchanges the contents of the array lhs with another array rhs. Ownership of the respective boost::container::pmr::memory_resource objects is not transferred.

  • If *lhs.storage() == *rhs.storage(), ownership of the underlying memory is swapped in constant time, with no possibility of exceptions. All iterators and references remain valid.
  • If *lhs.storage() != *rhs.storage(), the contents are logically swapped by making a copy, which can throw. In this case all iterators and references are invalidated.
Effects
lhs.swap( rhs );
Complexity

Constant or linear in lhs.size() + rhs.size().

Exception Safety

Strong guarantee. Calls to memory_resource::allocate may throw.

Parameters

Name

Description

lhs

The array to exchange.

rhs

The array to exchange. If &lhs == &rhs, this function call has no effect.

See Also

array::swap

Convenience header <boost/json.hpp>


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