/**
* Construct Domain Iterator using domain of a given function.
* This is more efficient that creating from sratch.
* @param[in] fun Function whose domain should be copied.
*/
DomainIterator::DomainIterator(const DiscreteFunction& fun)
: vars_i(fun.varBegin(),fun.varEnd()), // copy variables
subInd_i(fun.noVars(),0), // set all subindices to zero
ind_i(0), // set linear index to zero
fixed_i(fun.noVars(),false), // all variables are initially free
sizes_i(fun.sizeBegin(),fun.sizeEnd()), // copy variable sizes
finished_i(false) // iterator is not done yet
{} // nothing left to do in constructor body
/**
* Check that two maxsum::DiscreteFunction objects have the same domain.
* Two functions have the same domain, if they depend on the same set of
* variables.
* @param[in] f1 First function to compare
* @param[in] f2 Second functions to compare
* @returns true if both function have the same domain.
*/
bool maxsum::sameDomain(const DiscreteFunction& f1, const DiscreteFunction& f2)
{
if(f1.noVars()!=f2.noVars())
{
return false;
}
return std::equal(f1.varBegin(),f1.varEnd(),f2.varBegin());
} // function sameDomain
