SunStudio 12 Fails to compile template function with template argument

Question

Hi
Look at the code below:
#include <iostream>
template<class InIt, class OutIt>
InIt copy_n(InIt first,  typename  std::iterator_traits<InIt>::difference_type  length, OutIt dest)
   for (;length--; ++dest, ++first)
      *dest = *first;
   return first;
int main()
        char str1[]="Sumit";
        char str2[20];
        copy_n(str1,6,str2);
        std::cout << str2;
        return 0;
}I have simplified this to pin point the problem, This code dosent compile with SunStudio12 C++ Compiler, (however this works fine on g++ and vc++). The problem is with second parameter
typename std::iterator_traits<InIt>::difference_type  lengthinstead if we specify any simple type as below, it works fine
int lengthSuns "http://developers.sun.com/sunstudio/documentation/ss12/whatsnew.html" says :
Support for the following open-source libraries:
BOOST http://www.boost.org
The above code snippet is picked from "boost/boost_1_35_0/boost/interprocess/detail/algorithms.hpp" line number 65.
Any Suggestions or work arounds??+
The above Suns link also says:
Complex expressions in template parameters.
The compiler was previously unable to handle expressions in non-type template arguments in certain cases.
I did not use any compilation flag, am I missing something?
Edited by: sumitkumar on May 20, 2008 12:20 PM
Edited by: sumitkumar on May 20, 2008 12:25 PM
Edited by: sumitkumar on May 20, 2008 12:25 PM

Answer 1

>
Suns "http://developers.sun.com/sunstudio/documentation/ss12/whatsnew.html" says :
Support for the following open-source libraries:
BOOST http://www.boost.org
Boost 1.34.1 should work OK. I haven't tried Boost 1.35 yet.
The above code snippet is picked from "boost/boost_1_35_0/boost/interprocess/detail/algorithms.hpp" line number 65.
Any Suggestions or work arounds??+
The above Suns link also says:
Complex expressions in template parameters.
The compiler was previously unable to handle expressions in non-type template arguments in certain cases.
I did not use any compilation flag, am I missing something?
Make sure that you compile and link with -library=stlport4, otherwise you will be limited in the Boost libraries that you will be able to use.
Paul