C++ for Scientists - Technische Universität Dresden

5.5. EXERCISES 185
5.5 Exercises
5.5.1 Vector class
Revisit the vector example from §??.
Make an expression for a scalar times a vector:
class scalar times vector expressions {
} ;
that inherits from base vector. Use the inheritance mechanism to assign scalar times vector expressions
into vector.
5.5.2 Vector expression template
Make a vector concept, which you call Vector. Make a vector class (you can use std::vector)
that satisfies this concept. This vector class should have at least the following members:
class my vector {
public:
typedef double value type ;
public:
my vector( int n ) ;
// Copy Constructor from type itself
my vector( my vector& ) ;
// Constructor from generic vector
template
my vector( Vector& ) ;
// Assignment operator
my vector& operator=( my vector const& v ) ;
// Assignment for generic Vector
template
my vector& operator=( Vector const& v ) ;
value type& operator() ( int i ) ;
public: // Vector concept
int size() const ;
value type operator() ( int i ) const ;
} ;
Make an expression for a scalar times a vector:
template
class scalar times vector expression{
} ;