| Technical Specification | ||||
| Filesystem library(filesystem TS) | ||||
| Library fundamentals(library fundamentals TS) | ||||
| Library fundamentals 2(library fundamentals TS v2) | ||||
| Library fundamentals 3(library fundamentals TS v3) | ||||
| Extensions for parallelism(parallelism TS) | ||||
| Extensions for parallelism 2(parallelism TS v2) | ||||
| Extensions for concurrency(concurrency TS) | ||||
| Extensions for concurrency 2(concurrency TS v2) | ||||
| Concepts(concepts TS) | ||||
| Ranges(ranges TS) | ||||
| Reflection(reflection TS) | ||||
| Mathematical special functions(special functions TR) | ||||
| Experimental Non-TS | ||||
| Pattern Matching | ||||
| Linear Algebra | ||||
| std::execution | ||||
| Contracts | ||||
| 2D Graphics |
| std::future extensions | ||||
| Latches and barriers | ||||
| Atomic smart pointers | ||||
void count_down( ptrdiff_t n=1); | (1) | (concurrency TS) |
Atomically decrements the internal counter byn without blocking the caller.
Ifn is greater than the value of the internal counter or is negative, the behavior is undefined.
This operationsynchronizes with all calls that block on this latch and allis_ready calls on this latch that returnstrue.
| n | - | the value by which the internal counter is decreased |
(none)
Throws nothing.
