| 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 |
| Member functions | ||||
| Observers | ||||
| Non-member functions | ||||
| Helper classes | ||||
std::hash | ||||
Defined in header <experimental/propagate_const> | ||
template<class T>struct hash<std::experimental::propagate_const<T>>; | (library fundamentals TS v2) | |
The template specialization ofstd::hash forstd::experimental::propagate_const<T> allows users to obtain hashes of objects of typestd::experimental::propagate_const<T>.
For a givenstd::experimental::propagate_const<T> p, this specialization ensures thatstd::hash<std::experimental::propagate_const<T>>()(p)==std::hash<T>()(p.t_), wherep.t_ is the pointer-like object wrapped byp.
| This section is incomplete Reason: no example |
(C++11) | hash function object (class template)[edit] |
