CODEWITHSUNDEEP
c++arraysvisual-studio-2012
gmaster
gmaster

Reputation: 692

C++ Array Error in Visual Studio

I'm relearning C++ and I'm having some trouble with arrays in classes. Here's a simplified version of what I'm working with

class Class
{
private:
    string array[2];
public:
    Class()
    {
        array[2] = {"Hello", "World"};
    }
    void printOut(int x)
    {
        cout << array[x];
    }

Visual Studio has an error on the first brace in the array initialization in the constructor (i.e. {"Hello", "World"}; which says "Error: expected an expression." However, this problem does not occur when I initialize any other variable (not arrays).

I would have simple initialized the array values when I declared the array in the private section of the class as shown below.

class Class
{
private:
    string array[2] = {"Hello", "World"};

But Visual Studio gives an error on the equals sign saying "Error: data member initialization is now allowed." This error does occur any time I try to initialize the variables at the same time they are declared in the private section of the class.

Any help or advice would be appreciated, thank in advance.

Upvotes: 0

Views: 2091

Answers (1)

Pubby
Pubby

Reputation: 53047

Arrays can only be initialized using that syntax, not assigned. You have to initialize it in the constructor's initialization list:

Class() : array{"Hello", "World"} {}

Alternatively, use std::array which can be assigned.

std::array<string, 2> array;

 Class()
 {
    array = {{ "Hello", "World" }};
 }

Another:

Class()
{
    array[0] = "Hello";
    array[1] = "World";
}

Upvotes: 3

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