please help me with this ....
I can't seem to get my code work...
the following code doen't seem to work.
Here's the code.

#include<iostream>


using namespace std;

template <class T>
T swap(T &a , T &b)
{
T c ;
c = a;
a = b;
b = c;
}


int main()
{
int a = 1,b = 2;
float c = 1.0,d = 2.0;
char e = 'A',f = 'B';

swap(a,b);
swap(c,d);
swap(e,);
}

these are the errors I am receiving


template1.cpp: In function `int main()':
template1.cpp:22: error: call of overloaded `swap(int&, int&' is ambiguous
template1.cpp:8: error: candidates are: T swap(T&, T& [with T = int]
/usr/include/c++/3.3.3/bits/stl_algobase.h:121: error: void
std::swap(_Tp&, _Tp& [with _Tp = int]
template1.cpp:23: error: call of overloaded `swap(float&, float&' is ambiguous
template1.cpp:8: error: candidates are: T swap(T&, T& [with T = float]
/usr/include/c++/3.3.3/bits/stl_algobase.h:121: error: void
std::swap(_Tp&, _Tp& [with _Tp = float]
template1.cpp:24: error: call of overloaded `swap(char&, char&' is ambiguous
template1.cpp:8: error: candidates are: T swap(T&, T& [with T = char]
/usr/include/c++/3.3.3/bits/stl_algobase.h:121: error: void
std::swap(_Tp&, _Tp& [with _Tp = char]

Please Help.. I need to finish the chapter on templates as soon as possible

And by the way if u know any websites which would help me with C++ please specify
especially the one which would help to study C++ inside out............
Thanks
I hope you all will help

Please do not post the same thread in more than one forum. Picking the most relevant forum and posting it once there makes it easier for other members to help you and keeps the discussion all in one place.

http://www.linuxquestions.org/rules.php

The original is here:
http://www.linuxquestions.org/questi...hreadid=312839

Ok, since Tinkster has played the "bad guy" I can play a "good guy" here :-)

You need to change the code in the following way:

1) do not use namespace std (in this case only). It confuses the compiler because there is already a std::swap which clash with yours
2) you did not instantiate your swap function properly. see "swap<char>" above?
3) And it is better to use typename than class

You don't need to use the template syntax to call the swap functions above, although doing so will explicitly let the compiler know what specialization you want to use.

As you pointed out the real problem is that the two versions of the swap function were clashing. Another way to get around that would have been to append :: in front of your swap to indicate the swap from the global namespace. Getting rid of the using namespace std is probably a cleaner solution, though.

Another minor point is that you are defining your swap function as returning a T, but you never actually return anything. The compiler doesn't seem to generate any warnings or errors about this, so it's probably not a big deal, though.

Thanks a lot guys . It really helped me..