std::execution:: schedule, std::execution:: schedule_result_t

Obtains a sender describing the start of a task graph on the provided scheduler.

For a subexpression sch , the expression schedule ( sch ) is expression-equivalent to sch. schedule ( ) .

Customization point objects

The name execution::schedule denotes a customization point object , which is a const function object of a literal semiregular class type. The cv-unqualified version of its type is a tag type denoted as execution::schedule_t .

All instances of execution::schedule_t are equal. The effects of invoking different instances of type execution::schedule_t on the same arguments are equivalent, regardless of whether the expression denoting the instance is an lvalue or rvalue, and is const-qualified or not (however, a volatile-qualified instance is not required to be invocable). Thus, execution::schedule can be copied freely and its copies can be used interchangeably.

Given a set of types Args... , if std:: declval < Args > ( ) ... meet the requirements for arguments to execution::schedule above, execution::schedule_t models

• std:: invocable < execution :: schedule_t , Args... > ,
• std:: invocable < const execution :: schedule_t , Args... > ,
• std:: invocable < execution :: schedule_t & , Args... > , and
• std:: invocable < const execution :: schedule_t & , Args... > .
  

Otherwise, no function call operator of execution::schedule_t participates in overload resolution.

Example