GPGPU Programming for Games and Science

Linear and Affine Algebra 277

Finally, the class implements the standard six comparison operators to

support sorted container classes; see Listing 6.19.

template <int NumRows , int NumCols , typename Real>

class Matrix

{

public :

// comparisons for sorted containers and geometric ordering

bool operator== ( M a t r i x const&mat) const ;

bool operator!= ( M atrix const&mat) const ;

bool operator< (Matrix const&mat) const ;

bool operator<=(Matrix const&mat) const ;

bool operator> (Matrix const&mat) const ;

bool operator>=(Matrix const&mat) const ;

} ;

LISTING 6.19: Comparison operators for the matrix class.

A large number of functions are defined outside the class, a practice sug-

gested in [55, Rule 44]. Included are unary operators so that you can write

expressions ...