NAME¶

std::execution::read - std::execution::read

Synopsis¶

Defined in header <execution>
execution::sender auto read( auto tag ); (since C++26)

Parameters¶

tag - by which the customization point is recognized

Return value¶

Returns a sender that reaches into a receiver’s environment and pulls out the
current value associated with the customization point denoted by Tag.

Example¶

Possible usage of tags in read function, to retrieve the value associated with the
customization point.

execution::sender auto get_scheduler()
{
return read(execution::get_scheduler);
}

execution::sender auto get_delegatee_scheduler()
{
return read(execution::get_delegatee_scheduler);
}

execution::sender auto get_allocator()
{
return read(execution::get_allocator);
}

execution::sender auto get_stop_token()
{
return read(execution::get_stop_token);
}