Hi Aaron, > void foo(const int (* p)[9]); > > In this case, you are guaranteed that the caller is giving you a valid > buffer. Otherwise, you will get a compile error message which will help > you quickly detect a problem. I think... In C, arrays degenerate into pointers at the drop of a hat. These two kinds of pointers are compatible: int* p; int const* p; The two kinds of pointers are compatible: int** p; int* const* p; The two kinds of pointers are not compatible: int** p; int const** p; Your situation is like the third case. The const is not two-levels-of-indirection compatible. Anyone have ISO 9899 on hand to cite chapter & verse? HTH, --Eljay
