why do I get the error cannot deduce template argument for Comparable? I don't see where i went wrong (duh). Comparator comp is a functor used to compare two items while sorting.

What am I doing wrong?Code:template <class Iter, class Comparable, class Comparator> void insertionSort( Iter begin, Iter end, Comparator comp) { for(Iter p = begin+1; p != end; p++ ) { Comparable tmp = *p; Iter j; for( j = p; j != begin && comp(tmp, *(j-1)); --j ) *j = *(j - 1); *j = tmp; } } // My main call looks like this. assume that everything prior is done right // including declarations of variables. LessThanByIDnum() is the functor that im trying // to use insertionSort(people.begin(), people.end(), LessThanByIDnum() );

edit:

Well now i see that the compiler will not recognize what type Comparable should be. What is a reasonable way to solve this problem?

Thanks in advance

btw, im trying to work with maps.