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  1. #include <iostream>
  2. #include <cstdio>
  3. #include <functional>
  4. #include <iostream>
  5. using namespace std;
  6.  
  7. int mul(int x, int y){
  8.  
  9.     return x*y;
  10. }
  11. int dif(int x, int y){
  12.  
  13.     return x/y;
  14. }
  15. int sum(int x, int y){
  16.  
  17.     return x+y;
  18. }
  19. int sub(int x, int y){
  20.  
  21.     return x-y;
  22. }
  23.  
  24.  
  25. int main() {
  26.     int x, y;
  27.     x = 5;
  28.     y = 2;
  29.     int(*funPtr1)(int, int) = mul;
  30.     int(*funPtr2)(int, int) = sum;
  31.     //z2
  32.     int(*tabFunPtr[4]) (int x, int y);
  33.     tabFunPtr[0] = mul;
  34.     tabFunPtr[1] = dif;
  35.     tabFunPtr[2] = sum;
  36.     tabFunPtr[3] = sub;
  37.     //z4
  38.     auto lamMul = [&](int x, int y) -> int{ 
  39.         return x*y; 
  40.     };
  41.     auto lamDif = [&](int x, int y) -> int{
  42.         return x / y;
  43.     };
  44.     auto lamSum = [&](int x, int y) -> int{
  45.         return x + y;
  46.     };
  47.     auto lamSub = [&](int x, int y) -> int{
  48.         return x - y;
  49.     };
  50.  
  51.  
  52.  
  53.     cout << mul(x,y) << endl;
  54.     cout << dif(x,y) << endl;
  55.     cout << sum(x,y) << endl;
  56.     cout << sub(x,y) << endl;
  57.     cout <<"------------------------"<<endl;
  58.     cout << funPtr1(x,y)<<endl;
  59.     cout << funPtr2(x,y)<<endl;
  60.     cout <<"-------------z2---------"<< endl;
  61.     for(int i =0; i<4; i++){
  62.         cout << (*tabFunPtr[i])(x, y) << endl;  
  63.     }
  64.     cout << "------------------------z3--------"<< endl;
  65.     cout << lamMul(x, y) << endl;
  66.     cout << lamDif(x, y) << endl;
  67.     cout << lamSum(x, y) << endl;
  68.     cout << lamSub(x, y) << endl;
  69.  
  70.  
  71.     system("pause");
  72.     return 0;
  73. }
Success #stdin #stdout #stderr 0s 3140KB
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stdin
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Standard input is empty
stdout
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10
2
7
3
------------------------
10
7
-------------z2---------
10
2
7
3
------------------------z3--------
10
2
7
3
stderr
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sh: 1: pause: not found
https://ideone.com/izpYWo
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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