How do I overload () operator with two parameters; like (3,5)?
By : Chelsea Cerame
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I have a mathematical matrix class. It contains a member function which is used to access any element of the class. , Return a reference to the element in the overloaded operator(). code :
template<class T>
class Matrix
{
public:
T& operator()(uint64_t unRow, uint64_t unCol);
// Implement in terms of nonconst operator
// to avoid code duplication (legitimate use of const_cast!)
const T&
operator()(uint64_t unRow, uint64_t unCol) const
{
return const_cast<Matrix&>(*this)(unRow, unCol);
}
};
template<class T>
T&
Matrix<T>::operator()(uint64_t unRow, uint64_t unCol)
{
// return the desired element here
}

What does it mean to overload operator bool with two parameters?
By : user2529923
Date : March 29 2020, 07:55 AM
I hope this helps you . That is not "operator bool", but operator(), with two T arguments, returning a bool. In other words, it is a binary predicate. You can use it like this: code :
struct Foo
{
bool operator()(const T&, const T&); // should probably be const
};
...
Foo f;
T t1, t2;
bool b = f(t1, t2);

overload the bracket operator with multiple parameters
By : jocantaro
Date : March 29 2020, 07:55 AM
hope this fix your issue Currently, you have a class Matrix with an attribute matrix which is a numpy array. Therefore you would need to reference the attribute first and then pass the indices: code :
>>> m.matrix[5,5]
5
class Matrix(np.ndarray):
def __new__(cls, shape, fill_value=0):
return np.full(shape, fill_value)
>>> m = MyMatrix((10, 10), 5)
>>> print(m[5, 5])
>>> 5

Why pass by const reference in overload operator+ with multiple parameters
By : kinesine
Date : March 29 2020, 07:55 AM
hope this fix your issue I am doing operator+ overloading with multiple parameters as below. , Look at your operator+ signature: code :
friend Integer operator+ (Integer & a, Integer & b)
// ^^^^^^^^^ ^^^^^^^^^
Integer d = a+b+c;

c++ Parameters not passed into operator overload<
By : Sugavaneshwaran A
Date : March 29 2020, 07:55 AM
help you fix your problem When creating an operator overload for a class "State", the operator that i've overloaded does not have any member variables initialized. code :
bool operator<( State m)const
State(const State& s)
{
for (int i = 0; i < SIZE; i++)
for (int j = 0; j < SIZE; j++)
board[i][j] = s.getValue(i, j);
}

