On Wed, Nov 05, 2003 at 12:53:02PM +0000, Angus Leeming wrote:
> Andre Poenitz wrote:
> > Well... this exposes an implementation detail (type of container) to
> > the outer world. Moreover, people are tempted to use ++ on
> > iterators, whereas not too many poeple would use (&element(3) + 1)
> >
> > So _I_'d prefer the accessor functions.
>
> Hmpfff. I did as you suggested and all is working beautifully. However, I had to
> jump through some big hoops on the way. Ahh well...
>
> void read_scalar_field(std::istream & is,
> char const * identifier,
> support::size_type nnodes,
> boost::function2<void, support::size_type, double> set_value);
>
> template <typename Element>
> void read_conc(std::istream & is, ElementList<Element> & elist)
> {
> using support::size_type;
>
> // set_value(i, val) is equivalent to elist.node(i).set_conc(val);
> boost::function2<void, size_type, double> set_value =
> boost::bind(&Node::set_conc,
> boost::bind(&ElementList<Element>::node,
> boost::ref(elist), _1),
> _2);
>
> read_scalar_field(is, "CONCENTRATION", elist.nnodes(), set_value);
> }
You do not expect me to understand that, do you?
Andre'
--
Those who desire to give up Freedom in order to gain Security, will not have,
nor do they deserve, either one. (T. Jefferson or B. Franklin or both...)
