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  1. #include <iostream>
  2. #include <functional>
  3.  
  4.  
  5. typedef unsigned GLuint;
  6.  
  7. class A {
  8.  
  9. public: 
  10.    void Draw(GLuint shader) {
  11.        std::cout << "A " << shader << std::endl;
  12.         //делаем что-то
  13.    }
  14. };
  15.  
  16. class B {
  17. public:
  18.  
  19.    void Draw(GLuint shader) {
  20.        std::cout << "B " << shader << std::endl;
  21.         //делаем что-то не тоже что в class A;
  22.    }
  23. };
  24.  
  25. class mainClass {
  26.  
  27. public:    
  28.    std::function<void (GLuint)> draw;
  29. };
  30.  
  31.  
  32. int main() {
  33.     using namespace std::placeholders;
  34.  
  35.     mainClass m;
  36.     A a;
  37.     B b;
  38.  
  39.     m.draw = std::bind(&A::Draw, a, _1);
  40.     m.draw(1);
  41.  
  42.     m.draw = std::bind(&B::Draw, b, _1);
  43.     m.draw(2);
  44. }
Success #stdin #stdout 0s 3032KB
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Standard input is empty
stdout
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A 1
B 2
https://ideone.com/tPvT7f
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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