C++ problem. help to understand a line?

Question

Actually i was looking for a example of tic tac toe program and found my requirement but was unable to understand one line. please tell. it's type of declaration.

char square[10] = {'0','1','2','3','4','5','6','7','8','9'};

it's writen outside main.
please give me alternative also for this line if you know it.

Answer 1

This line is declaring a variable called square, which is of type char[] (i.e., an array of characters). The array has ten elements.



It also initializes the array to contain characters representing the ten decimal digits, 0 - 9, in sequence.



If it is written outside of any function, then square is a global variable.

Answer 2

As it is outside the main function it is global declaration i.e the character array square[10] can be accessed by all the functions or methods.The allocation would be like this

square[0]=0

square[1]=1

.

.

.

.

square[8]=8

square[9]=9

Answer 3

if it's written out side main it mean global declaration.

i.e it is available throughout program.



if anything declared with in main or particular structure it's only available in that main/structure.



quick ex :



main ()

{

int a;

.

.

.

}

structure A

{

int b;

.

.

.

}



a is only available in main and b is only available in structure A.



generally variables die when they reach" } "sign in program.