更新时间:2022-11-23 21:32:58
默认构造函数只有生成如果你不声明任何构造函数。假设如果你定义自己的构造函数,那么你还可以决定是否需要一个无参数的构造函数,如果这样定义的话。
The default constructor is only generated if you don't declare any constructors. It's assumed that if you're defining a constructor of your own, then you can also decide whether you want a no-args constructor, and if so define that too.
在C ++ 0x,会有一个明确的语法,说你想要的默认构造函数:
In C++0x, there will be an explicit syntax for saying you want the default constructor:
struct Foo {
Foo() = default;
... other constructors ...
};