A completion condition is a function object that is
used with the algorithms read
,
async_read
,
write
, and async_write
to determine
when the algorithm has completed transferring data.
A type X
meets the CompletionCondition
requirements
if it satisfies the requirements of Destructible
(C++Std [destructible])
and CopyConstructible
(C++Std [copyconstructible]), as well
as the additional requirements listed below.
In the table below, x
denotes a value of type X
,
ec
denotes a (possibly const) value of type error_code
,
and n
denotes a (possibly const) value of type size_t
.
Table 6. CompletionCondition requirements
expression |
return type |
assertion/note |
---|---|---|
|
|
Let |