making a constant array in c++

Question

Is there any reason why codeblocks is telling me that I can\'t make an array? I\'m simply trying to do:

const unsigned int ARRAY[10] = {0,1,2,3,4,5,6,7,8,9};         


        

Answer 1

Since this is a private member variable in a class (according to the comment), this is indeed not allowed in C++03.

C++0x, partially supported by many modern compilers, allows the following to compile:

class C
{
    const unsigned int ARRAY[10];
 public:
    C() : ARRAY{0,1,2,3,4,5,6,7,8,9} {}
};
int main()
{
    C obj; // contains a non-static const member: non-assignable 
}

However, non-static const members only make sense if they contain different values in different instances of the class. If every instance is to contain the same {0,1,2,3,4,5,6,7,8,9}, then you should make it static, which also makes it possible to do this in C++98:

class C
{
    static const unsigned int ARRAY[10];
 public:
    C() {}
};
const unsigned int C::ARRAY[10] = {0,1,2,3,4,5,6,7,8,9};
int main()
{
    C obj;
}