Re: [Boost-users] [mpl] Implementing eraseVal

On Thu, March 29, 2007 09:28, Joaquín Mª López Muñoz wrote: [snip ...]

This works, but it is quite inefficient, as mpl::find, which computes in linear time, is called for every element of Seq. The same thing can be done in one pass through the sequence as follows:

template struct eraseVal2:mpl::copy_ifmpl::_,T > > {};

Please find attached a compilable snippet showing both algorithms at work.

HTH,

Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

Another approach would be to use the filter_view, without copying the elements. With Kind Regards, Ovanes Markarian