functor

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How to make a functor from a member function?

I want run to call c.drive(): #include <functional> using namespace std; struct Car { void drive() { }[详细]

2023-02-09 23:37 分类：问答
Adding two functions?

I just browsed through \"C# in Depth\" and stumbled upon the following code: Func<string> stringFunc = () => \"\";[详细]

2023-02-09 09:02 分类：问答
Help understanding the working of Function Objects?

I found this code on Wikipedia class compare_class { public: bool operator()(int A, int B) const { return A < B;[详细]

2023-02-07 20:16 分类：问答
Making (a, a) a Functor

How can I make (a, a) a Functor without resorting to a newtype? Basically I want it to work like this:[详细]

2023-02-07 12:20 分类：问答
Function pointers in embedded systems, are they useful?

In an in开发者_运维问答terview they asked me if using function pointers would be beneficial (in terms of speed) when writing code for embedded systems? I had no idea on embedded system so could not an[详细]

2023-02-07 04:07 分类：问答
Creating functor from lambda expression

I would like to know if it is possible to create an actual functor object from a lambda expression. I don\'t think so, but if not, why?[详细]

2023-02-07 00:13 分类：问答
Automatically deducing the type of bind1st(mem_fun(&my_class::f), this)?

I would like to pass the bind1st(mem_fun(&my_class::f), this) functor to for_each. Unfortunately it is very difficult to read so I would like to give it a more readible name like this:[详细]

2023-02-05 23:09 分类：问答
How to pass a std-functor in c++ and use it without knowing which one it is specifically

I have something like a sort-algorithm here, and I want to pass it a functor, which provides the sorting criteria (std::binary_function). So it should call T.operator<() for example if std::less is[详细]

2023-02-02 21:06 分类：问答
HowTo sort std::map?

Here is my map: typedef std::map<int/*security id*/, PositionMonth> PortfolioMonth; where PositionMonth is a structure, ex.:[详细]

2023-02-01 03:07 分类：问答
Can I write a C++ functor that accepts both a raw pointer and a smart pointer?

Given the following: struct Foo { int bar() const; }; struct IsEqual : public std::unary_function<Foo*, bool>[详细]

2023-01-30 14:47 分类：问答