29
Time library
[time]
29.5
Class template
duration
[time.duration]
29.5.10
Algorithms
[time.duration.alg]
🔗
template
<
class
Rep,
class
Period
>
constexpr
duration
<
Rep, Period
>
abs
(
duration
<
Rep, Period
>
d
)
;
1
#
Constraints
:
numeric_
limits
<
Rep
>
::
is_
signed
is
true
.
2
#
Returns
: If
d
>
=
d
.
zero
(
)
, return
d
, otherwise return
-
d
.