31
Input/output library
[input.output]
31.7
Formatting and manipulators
[iostream.format]
31.7.6
Output streams
[output.streams]
31.7.6.6
Rvalue stream insertion
[ostream.rvalue]
🔗
template
<
class
Ostream,
class
T
>
Ostream
&
&
operator
<
(
Ostream
&
&
os,
const
T
&
x
)
;
1
#
Constraints
: The expression
os
<
<
x
is well-formed when treated as an unevaluated operand and
Ostream
is publicly and unambiguously derived from
ios_
base
.
2
#
Returns
:
std
::
move
(
os
)
.