20
General utilities library
[utilities]
20.17
Class
type_index
[type.index]
20.17.4
Hash support
[type.index.hash]
🔗
template
<
>
struct
hash
<
type_index
>
;
1
#
For an object
index
of type
type_index
,
hash
<
type_index
>
(
)
(
index
)
shall evaluate to the same result as
index
.
hash_code
(
)
.