no all compilers support the export keyword. just put the template in a .h or .hpp file and include it in your .cpp file. that should be enough.
-Whit On Tue, Nov 18, 2008 at 2:50 PM, charlie <[EMAIL PROTECTED]> wrote: > Thanks guys for all your kind heartedness. > > Yeah, I got messed up with a lot of things in my previous program, like > missing the definition of one function and etc. I finally discovered a good > example on: > http://www.opensource.apple.com/darwinsource/Current/swig-4/swig/Examples/java/funcptr/index.html. > And I was able to make a workable example as following: > > /* test.i */ > %module test > %{ > #include "test.h" > %} > %include "test.h" > > %constant B (*F)( const A&)=f; > //let a=A(), b=B() > %template(ia) ex1<A>; // from Doc, works > %template(jab) ex2<A, B>; // jab(a,b) works > %template(kab) ex3<A, B>; // kab(a,b,1) works > %template(lab) ex4<A, B>; // lab(a,b,1,F) works > %template(fab) ex5<A, B>; // fab(a,b,1,F) ultimate goal > > /* test.h */ > > #include<iostream> > using namespace std; > > class A { }; > class B { }; > class E { }; > B f( const A& ) { cout<<"This is a function map A to B"<<endl; return *(new > B); }; > typedef B (*fp)( const A& ); > > template<class T> E ex1(T a, T b) { cout<<"ex1, one parameter > template"<<endl; return *(new E); } > // NOTE: simple template function > > template<class T, class S> E ex2(T t, S s) { cout<<"ex2, two parameters > template"<<endl; return *(new E); } > // NOTE: this extends the one above with two template parameters > > template<class T, class S> E ex3(T t, S s, int k) { > cout<<"ex3, two parameters template plus an int argument"<<endl; return > *(new E); } > // NOTE: this extends the one above with additional integer argument > > template<class T, class S> E ex4(T t, S s, int k, fp gp) { > cout<<"ex4, two parameters template, an int argument and an func ptr > argument"<<endl; > A a=A(); B b=gp(a); return *(new E); } > // NOTE: this extends the one above with one more function poiter argument > > template <class C, class D> E ex5(C c, D& d, int n, D (*g)(const C&)) { > cout<<"ex5, two parameters template, an int argument and a template func > ptr argument"<<endl; > g(c); return *(new E); } > // NOTE: this temaplate function TF takes a template function poiter as > argument, our ultimate goal > > And currently I got my program work now. But the ex. in 5.4.9 still seems > not working. Anyway, so far good for me now. Maybe one last thing, currently > I need to put the definition and declaration of a template function all in > one file, otherwise I got undefined symbol error. How can I separate them > into a .h and .cpp file? The 'export' keyword which suggested in TCPL seems > do't work with gcc. Any comments? > > Thanks a bunch already! > > Charlie > > > > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
