CODEWITHSUNDEEP
c++templatesswap
suhas
suhas

Reputation: 173

call of overloaded 'swap(float&, float&)' is ambiguous

in this program the calling of swap function giving an error called call of overloded function is ambiguos.please tell me how i can resolve this problem. is there is any diffrent method of calling the template function

     #include<iostream>
    using namespace std;
      template <class T>
    void swap(T&x,T&y)
    {
            T temp;
            temp=x;
         x=y;
           y=temp;
       }
    int main()
   {
    float f1,f2;
    cout<<"enter twp float numbers: ";
    cout<<"Float 1: ";
     cin>>f1;
    cout<<"Float 2: ";
    cin>>f2;
    swap(f1,f2);
    cout<<"After swap: float 1: "<<f1<<" float 2:"<<f2;
    int a,b;
    cout<<"enter twp integer numbers: ";
    cout<<"int 1: ";
    cin>>a;
    cout<<"int 2: ";
    cin>>b;
    swap(a,b);
    cout<<"After swap: int 1: "<<a<<" int 2:"<<b;
    return 0;
    }

Upvotes: 5

Views: 2445

Answers (3)

suhas
suhas

Reputation: 173

By changing the swap function to my_swap function it solve the problem. because swap is also a predefined function in c++

#include<iostream>
using namespace std;
  template <class T>
void my_swap(T&x,T&y)
{
        T temp;
        temp=x;
     x=y;
       y=temp;
   }
int main()
{
  float f1,f2;
cout<<"enter twp float numbers: ";
cout<<"Float 1: ";
 cin>>f1;
cout<<"Float 2: ";
cin>>f2;
my_swap(f1,f2);
cout<<"After swap: float 1: "<<f1<<" float 2:"<<f2;
int a,b;
cout<<"enter twp integer numbers: ";
cout<<"int 1: ";
cin>>a;
cout<<"int 2: ";
cin>>b;
my_swap(a,b);
cout<<"After swap: int 1: "<<a<<" int 2:"<<b;
return 0;
}

Upvotes: 1

formiaczek
formiaczek

Reputation: 425

surely, rename your function or remove -> there is one in the library already:

http://www.cplusplus.com/reference/algorithm/swap/

and this is what your compiler is complaining about.

Upvotes: 0

Ivaylo Strandjev
Ivaylo Strandjev

Reputation: 70929

Your function is conflicting with the one defined in move.h that is included implicitly by some of your includes. If you remove the using namespace std this should be fixed - the function you are conflicting with is defined in the std namespace.

Upvotes: 9

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