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cpp-libs
Actor Framework
Commits
579b6fa2
Commit
579b6fa2
authored
Oct 30, 2015
by
Dominik Charousset
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Allow conversion from optional<U> to optional<T>
parent
f85c761a
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libcaf_core/caf/optional.hpp
libcaf_core/caf/optional.hpp
+22
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libcaf_core/caf/optional.hpp
View file @
579b6fa2
...
...
@@ -48,6 +48,20 @@ public:
cr
(
std
::
move
(
value
));
}
template
<
class
U
>
optional
(
const
optional
<
U
>&
other
)
:
valid_
(
false
)
{
if
(
other
.
valid
())
{
cr
(
other
.
get
());
}
}
template
<
class
U
>
optional
(
optional
<
U
>&&
other
)
:
valid_
(
false
)
{
if
(
other
.
valid
())
{
cr
(
std
::
move
(
other
.
get
()));
}
}
optional
(
const
optional
&
other
)
:
valid_
(
false
)
{
if
(
other
.
valid_
)
{
cr
(
other
.
value_
);
...
...
@@ -179,6 +193,14 @@ public:
// nop
}
template
<
class
U
>
optional
(
const
optional
<
U
>&
value
)
{
if
(
value
)
value_
=
&
value
.
get
();
else
value_
=
nullptr
;
}
optional
(
const
optional
&
other
)
=
default
;
optional
&
operator
=
(
const
optional
&
other
)
=
default
;
...
...
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