2D-array as argument to function

Question

Why can\'t you declare a 2D array argument in a function as you do with a normal array?

 void F(int bar[]){} //Ok
 void Fo(int bar[][]) //Not ok
 void Foo(in         


        

Answer 1

The compiler needs to know how long the second dimension is to calculate the offsets. A 2D array is in fact stored as a 1D array. If you want to send an array with no known dimensions, consider using pointer to pointers and some sort of way to know the dimension yourself.

This is different from e.g. java, because in java the datatype also contains the dimension.