16
Library introduction
[library]
16.3
Method of description
[description]
16.3.3
Other conventions
[conventions]
16.3.3.3
Type descriptions
[type.descriptions]
16.3.3.3.2
Exposition-only types
[expos.only.types]
1
#
Several types defined in
[support]
through
[thread]
and
[depr]
are defined for the purpose of exposition
.
The declaration of such a type is followed by a comment ending in
exposition only
.
[
Example
1
:
namespace
std
{
extern
"C"
using
some-handler
=
int
(
int
,
void
*
,
double
)
;
//
exposition only
}
The type placeholder
some-handler
can now be used to specify a function that takes a callback parameter with C language linkage
.
—
end example
]