Re: [Boost-users] template int argument

18 Mar 2008

      AMDG

Hicham Mouline wrote:
...
hi,
I have a template function <typename cT, typename tT, int n>
{
....
double array[n];
if (n==2)
  binomial code
else if (n==3)
  trinomial code  (array[0] array[1] array[2])
else
....
compiler tries to compile the "trinomial code" code even when the template 
is instantiated with n=2,
and that gives warnings because of array[2]
Is there a way to make the compiler ignore the non-binomial code ?
rds,
You'll have to split it out into a separate function and use template 
specialization/overload resolution.

template<int n>
void do_n_specific_code(double (&array)[n]);

template<typename cT, typename tT, int n>
void f() {
    double array[n];

    do_n_specific_code(array);

}

In Christ,
Steven Watanabe