Templates

[g18c]

Hi, i am trying to overload a function with a number of specific
template functions without much sucess.

template<typename T> void TmplFunc(T& t)
{
}

template<typename T> void TmplFunc(list<T>& t)
{
list<T>::const_iterator fi = t.begin();
}

void main()
{
list<int> myList;
TmplFunc(myList);
}

On compilation i get an error saying none of the two overloads have a
best conversion. I appreciate for "void TmplFunc(T& t)" T could also be
a list... is there any way i can have the "void TmplFunc(list<T>& t)"
get called without resorting to calling the specific template with
"TmplFunc<list<int> >(myList)"? Or even better, i would like a template
function that can deal with any container object which has iterators!

Thanks in advance,

Chris

 

[Neelesh Bodas]

Hi, i am trying to overload a function with a number of specific
template functions without much sucess.

template<typename T> void TmplFunc(T& t)
{
}

template<typename T> void TmplFunc(list<T>& t)
{
list<T>::const_iterator fi = t.begin();
}

void main()

main must return int.

{
list<int> myList;
TmplFunc(myList);
}

Interestingly enough, my previous post was also for the same type of
question!!

 

[Bob Hairgrove]

Hi, i am trying to overload a function with a number of specific
template functions without much sucess.

template<typename T> void TmplFunc(T& t)
{
}

template<typename T> void TmplFunc(list<T>& t)
{
list<T>::const_iterator fi = t.begin();
}

void main()

This should be:
int main()

{
list<int> myList;
TmplFunc(myList);
}

On compilation i get an error saying none of the two overloads have a
best conversion. I appreciate for "void TmplFunc(T& t)" T could also be
a list... is there any way i can have the "void TmplFunc(list<T>& t)"
get called without resorting to calling the specific template with
"TmplFunc<list<int> >(myList)"? Or even better, i would like a template
function that can deal with any container object which has iterators!

I don't know, this works for me:

// test_template.cpp
#include <iostream>
#include <ostream>
#include <list>

template<typename T>
void TmplFunc(T& t)
{
}

template<typename T>
void TmplFunc(std::list<T>& t)
{
typename std::list<T>::const_iterator fi = t.begin();
std::cout << "Called TmplFunc(list<T>&)" << std::endl;
}

int main()
{
std::list<int> myList;
TmplFunc(myList);
}

 

[Chris Morley]

Not sure where my other post has gone so sorry if this appears twice... What
compiler is that with bob?

 

[Bob Hairgrove]

Not sure where my other post has gone so sorry if this appears twice... What
compiler is that with bob?

I tried it with MSVC++ 7.1 and Borland 5.5.1, but it would probably
work with any modern compiler.

 

[g18c]

Thanks for the reply, what compiler are you using? Im using Visual
Studio 2002

 

[Chris Morley]

I tried it with MSVC++ 7.1 and Borland 5.5.1, but it would probably

work with any modern compiler.

MSVC++7.0 doesn't seem to be modern because it doesn't work for me!! Surely
ppl have had these problems before? I cant use 7.1 because other people in
the team use MSVC++7.0 too. This is extremely frustrating!

 

[Bob Hairgrove]

Thanks for the reply, what compiler are you using? Im using Visual
Studio 2002

MSVC++ 7.1 and Borland 5.5.1 both compile it without errors.

 

[Ben Pope]

MSVC++7.0 doesn't seem to be modern because it doesn't work for me!!

No, it wouldn't be classed as modern with regards templates.

Ben Pope