Re: How can I do a template function that returns vector of template type?

From:

Davis King <davis685@gmail.com>

Newsgroups:

comp.lang.c++

Date:

Sat, 12 Apr 2008 06:24:09 -0700 (PDT)

Message-ID:

<ff0a4e87-b303-471f-a8df-aadecf92dcca@59g2000hsb.googlegroups.com>

On Apr 11, 10:46 pm, Ian Collins <ian-n...@hotmail.com> wrote:

Rob wrote:

I tried that and it still does not compile. I think it's because the
overloaded methods that will be created for the templated function
only differ by return type and not by args (the args are always the
same). Am I correct in that overloaded methods must differ in args?

Yes.

--
Ian Collins.

Uh, I beg to differ. I have used similar templated functions
frequently with no trouble. Think about boost::lexical_cast for
example. That works just fine even if you try to cast a string to an
int and also a string to a double. But by the logic of this thread
that should be illegal because the overloaded methods created by the
template wouldn't differ in their arguments.

I also just compiled this program in gcc and it worked fine for me.

#include <vector>
#include <string>

using namespace std;

template <typename T>
vector<T> get(int c)
{
    return vector<T>();
}

int main()
{
    vector<vector<string> > ret1 = get<vector<string> >( 0 );
    vector<string> ret2 = get<string >( 0 );
}

What exactly are you trying to compile that isn't working?

-Davis