Declare array in C++ header and define it in cpp file?

Question

This is probably a really simple thing but I\'m new to C++ so need help.

I just want to declare an array in my C++ header file like:

int lettersArr[2         


        

Answer 1

Add extern to the declaration in the header file.

extern int lettersArr[26];

(Also, unless you plan to change the array, consider also adding const.)

The definition must have a type. Add int (or const int):

int lettersArr[26] = { letA, /*...*/ };