使用boost :: serialization,在可變成員中序列化包含緩存的派生值的對象的「最佳」方法是什麼? class Example
{
public:
Example(float n) :
num(n),
sqrt_num(-1.0)
{}
// compute and cache sqrt on first read
考慮我的第一次嘗試,像下面這樣的簡單類型在F#: type Test() =
inherit BaseImplementingNotifyPropertyChangedViaOnPropertyChanged()
let mutable prop: string = null
member this.Prop
with public get() = pro
我在我的應用程序中使用實體框架。 我與部分類實體實現的IEquatable<T>接口: Partial Class Address : Implements IEquatable(Of Address) 'Other part generated
Public Overloads Function Equals(ByVal other As Address) As Boolean _
考慮下面的代碼: struct Foo
{
mutable int m;
template<int Foo::* member>
void change_member() const {
this->*member = 12; // Error: you cannot assign to a variable that is const
}