std::experimental::unique_resource<R, D>::operator=

Technical Specification
Filesystem library (filesystem TS)
Library fundamentals (library fundamentals TS)
Library fundamentals 2 (library fundamentals TS v2)
Library fundamentals 3 (library fundamentals TS v3)
Extensions for parallelism (parallelism TS)
Extensions for parallelism 2 (parallelism TS v2)
Extensions for concurrency (concurrency TS)
Extensions for concurrency 2 (concurrency TS v2)
Concepts (concepts TS)
Ranges (ranges TS)
Reflection (reflection TS)
Mathematical special functions (special functions TR)
Experimental Non-TS
Pattern Matching
Linear Algebra
std::execution
Contracts
2D Graphics

experimental::scope_exit
experimental::scope_fail
experimental::scope_success
experimental::unique_resource

unique_resource& operator=( unique_resource&& other ) noexcept(/see below/);		(library fundamentals TS v3)

Move assignment operator. Replaces the managed resource and the deleter with other's.

Formally, let RS be the type of stored resource handle:

First, calls reset() to dispose the currently owned resource, if any.
Then assigns the stored resource handle and the deleter with other's. std::move is applied to the stored resource handle or the deleter of other if std::is_nothrow_move_assignable_v<RS> or std::is_nothrow_move_assignable_v<D> is true respectively. Assignment of the stored resource handle is executed first, unless std::is_nothrow_move_assignable_v<D> is false and std::is_nothrow_move_assignable_v<RS> is true.
Finally, sets *this to own the resource if and only if other owned it before assignment, and other not to own the resource.

If std::is_nothrow_move_assignable_v<RS> is true, RS shall satisfy the MoveAssignable requirements; otherwise RS shall satisfy the CopyAssignable requirements. If std::is_nothrow_move_assignable_v<D> is true, D shall satisfy the MoveAssignable requirements; otherwise D shall satisfy the CopyAssignable requirements. Failing to satisfy above requirements results in undefined behavior.

Compiler support
Freestanding and hosted
Language
Standard library
Standard library headers
Named requirements
Feature test macros (C++20)
Language support library
Concepts library (C++20)
Diagnostics library
Memory management library
Metaprogramming library (C++11)
General utilities library
Containers library
Iterators library
Ranges library (C++20)
Algorithms library
Strings library
Text processing library
Numerics library
Date and time library
Input/output library
Filesystem library (C++17)
Concurrency support library (C++11)
Execution control library (C++26)
Technical specifications
Symbols index
External libraries

Member functions
unique_resource::unique_resource
unique_resource::~unique_resource
unique_resource::operator=
Modifiers
unique_resource::release
unique_resource::reset
Observers
unique_resource::get
unique_resource::get_deleter
unique_resource::operator*unique_resource::operator->
Non-member functions
make_unique_resource_checked
Deduction guides

Contents

reset	disposes or replaces the managed resource (public member function) [edit]
operator=	assigns the `unique_ptr` (public member function of `std::unique_ptr<T,Deleter>`) [edit]