std::experimental::any:: empty
From cppreference.net
<
cpp
|
experimental
|
any
C++
Experimental
| 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::experimental::any
| Member functions | ||||
| Modifiers | ||||
| Observers | ||||
|
any::empty
|
||||
| Non-member functions | ||||
|
bool
empty
(
)
const
noexcept
;
|
(ライブラリファンダメンタルTS) | |
オブジェクトが値を含むかどうかをチェックします。
パラメータ
(なし)
戻り値
true インスタンスが空の場合、それ以外の場合は false 。