std::experimental::latch:: count_down
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std::experimental::latch
|
latch::count_down
|
||||
|
void
count_down
(
ptrdiff_t n
=
1
)
;
|
(1) | (concurrency TS) |
Atomically decrements the internal counter by n without blocking the caller.
If n is greater than the value of the internal counter or is negative, the behavior is undefined.
This operation synchronizes with all calls that block on this latch and all is_ready calls on this latch that returns true .
Parameters
| n | - | the value by which the internal counter is decreased |
Return value
(none)
Exceptions
Throws nothing.
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