# std::stop_source::stop_source

From cppreference.com
< cpp‎ | thread‎ | stop source

stop_source(); | (1) | (since C++20)
explicit stop_source( std::nostopstate_t nss ) noexcept; | (2) | (since C++20)
stop_source( const stop_source& other ) noexcept; | (3) | (since C++20)
stop_source( stop_source&& other ) noexcept; | (4) | (since C++20)

Constructs a new `stop_source` object.

1) Constructs a `stop_source` with new stop-state.
2) Constructs an empty `stop_source` with no associated stop-state.
3) Copy constructor. Constructs a `stop_source` whose associated stop-state is the same as that of `other`.
4) Move constructor. Constructs a `stop_source` whose associated stop-state is the same as that of `other`; `other` is left empty.

### Parameters

nss | - | an `std::nostopstate_t` placeholder object to construct an empty `stop_source`
other | - | another `stop_source` object to construct this `stop_source` object with

### Postconditions

1) stop_possible() is true and stop_requested() is false
2) stop_possible() and stop_requested() are both false
3) *this and `other` share the same associated stop-state and compare equal
4) *this has `other`'s previously associated stop-state, and other.stop_possible() is false

### Exceptions

1) std::bad_alloc if memory could not be allocated for the stop-state
Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/thread/stop_source/stop_source&oldid=129730"