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std::flat_set::emplace(3)      C++ Standard Libary     std::flat_set::emplace(3)

NAME
     std::flat_set::emplace - std::flat_set::emplace

Synopsis
	template< class... Args >			      (since C++23)
	std::pair<iterator, bool> emplace( Args&&... args );

	Inserts  a  new element into the container constructed in-place with the
     given args,
	if there is no element with the key in the container.

	First, initializes  an	object	t  of  type  value_type  with  std::for-
     ward<Args>(args)...,
	then inserts t as if by

      auto it = ranges::upper_bound(c, t, compare);
      c.insert(it, std::move(t));

	This overload participates in overload resolution only if
	std::is_constructible_v<value_type, Args...> is true.

	Careful  use  of  emplace allows the new element to be constructed while
     avoiding
	unnecessary copy or move operations.

	 Information on iterator invalidation is copied from here

Parameters
	args - arguments to forward to the constructor of the element

Return value
	A pair consisting of an iterator to the inserted element (or to the ele-
     ment that
	prevented the insertion) and a bool value set to true if and only if the
     insertion
	took place.

Exceptions
	If an exception is thrown for any reason, this function  has  no  effect
     (strong
	exception safety guarantee).

Complexity
	Logarithmic in the size of the container.

Example
	 This section is incomplete
	 Reason: no example

See also
	emplace_hint constructs elements in-place using a hint
		     (public member function)
	insert	     inserts elements
		     (public member function)

Category:
	  * Todo no example

http://cppreference.com 	   2024.06.10	       std::flat_set::emplace(3)
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