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  1. #include <iostream>
  2. #include <map>
  3.  
  4. struct Foo
  5. {
  6.    Foo() : someValue(5) {};
  7.    int someValue;
  8. };
  9.  
  10. std::map<int,Foo*> function_that_returns_the_map()
  11. {
  12.    std::map<int,Foo*> myMap;
  13.    {
  14.       int v = 0; 
  15.       Foo *b = new Foo();
  16.       std::cout << (*b).someValue << std::endl; // PRINTING FOO FIRST
  17.       myMap.insert(std::pair<int,Foo*>(v,b));
  18.    }
  19.  
  20.    // PRINTING FOO AGAIN
  21.    std::map<int, Foo*>::iterator it = myMap.begin();
  22.    for(it; it != myMap.end(); ++it)
  23.    { 
  24.       std::cout << it->second->someValue << "\n";
  25.    }
  26.    return myMap;
  27. }
  28.  
  29. int main()
  30. {
  31.    std::map<int, Foo*> myMap;
  32.    myMap = function_that_returns_the_map();
  33.  
  34.    //PRINTING FOO AGAIN.
  35.  
  36.    std::map<int, Foo*>::iterator it = myMap.begin();
  37.    for (it; it!=myMap.end(); ++it)
  38.    std::cout << it->second->someValue << std::endl;
  39.    return 0;
  40. }
Success #stdin #stdout 0s 3032KB
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Standard input is empty
stdout
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5
5
5
https://ideone.com/NgieRP
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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