Read only variable is not assignable

[decoy98]

I've been researching and I'm still puzzled on how this error (Read only variable is not assignable) works. I'm trying to increment a private pointer and dereference it to get it's value.

// private variables
private:
	int deg;
	double* coeff;
};


// Implementation  
double Polynomial::coefficient(const int poly_pow) const {
	double poly_coeff = *coeff++;
	return poly_coeff;
}

[TarikNeaj]

Im not 100% sure. But since your function is const You cant increase/decrease or change a value at all inside there.

Also just wondering, why would the function take in const int poly_pow

And then not use it?

[decoy98]

@Tarik,

I figured it was the const! Thanks :)