GSL.i

   1 %typemap(in) double const [] {
   2     AV *tempav;
   3     I32 len;
   4     int i;
   5     SV **tv;
   6     if (!SvROK($input))
   7         croak("Math::GSL : $input is not a reference!");
   8     if (SvTYPE(SvRV($input)) != SVt_PVAV)
   9         croak("Math::GSL : $input is not an array ref!");
  10
  11     tempav = (AV*)SvRV($input);
  12     len = av_len(tempav);
  13     $1 = (double *) malloc((len+1)*sizeof(double));
  14     for (i = 0; i <= len; i++) {
  15         tv = av_fetch(tempav, i, 0);
  16         $1[i] = (double) SvNV(*tv);
  17     }
  18     $1[i] = GSL_NAN;
  19 }
  20 %apply double const [] { double *data };
  21 /*
  22 %typemap(freearg) double const [] {
  23     free($1);
  24 }
  25 */