[Inkscape-devel] optimization

I found that Inkscape runs 6% to 7% faster if I replace in nr-point.h

Coord operator[](unsigned i) const throw(std::out_of_range) { if ( i > Y ) { throw std::out_of_range("index out of range"); } return _pt[i]; }

with

inline Coord operator[](unsigned i) const { return _pt[i]; }

and the same for non-const version. I think it's safe to get rid of the range check because the indices are never calculated and are extremely unlikely to go off limits. So if nobody objects I will commit this change.