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function
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added some comments to explain the code

This commit is contained in:
Kjistóf 2016-11-27 14:34:23 +01:00
parent a037369c39
commit 4756e53292
1 changed files with 4 additions and 4 deletions
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8
Function.hpp
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@ -3,15 +3,15 @@
template <typename Fun> template <typename Fun> // here Fun will be a function signature
class Function; class Function;
template <typename Ret, typename... Args> template <typename Ret, typename... Args> // specialization, so we can work
class Function<Ret(Args...)> class Function<Ret(Args...)>
{ {
private: private:
class callable_base class callable_base // type-erasure magic for functors
{ {
public: public:
virtual Ret call(Args...) const = 0; virtual Ret call(Args...) const = 0;
@ -52,7 +52,7 @@ public:
return *this; return *this;
} }
Function& operator=(std::nullptr_t) Function& operator=(std::nullptr_t) // exploiting that decltype(nullptr) is std::nullptr_t
{ _is_null = true; } { _is_null = true; }
Ret operator()(Args... args) const Ret operator()(Args... args) const