[ori_b]

A syntax error. You need a variable name, not a type name, in the middle.

[ori_b]

And if you want 'int **arr[a][b]', it's a value that when you say 'x = **arr[m][n]', will evaluate to an int and assign it to x. Postfix has higher precedence than prefix.

[fusslo]

or a rejected PR