Adding const keyword to an array passed as a parameter to function

Question

Is there any way that I can add const keyword to an array passed as a parameter to function:

void foo(char arr_arg[])

If I place <

Answer 1

Yes, in C this is possible since C99:

void foo(char ptr_arg[const]);

is valid syntax and equivalent to

void foo(char *const ptr_arg);

More generally the [] may contain any type qualifier, static and an integer expression. But

The optional type qualifiers and the keyword static shall appear only in a declaration of a function parameter with an array type, and then only in the outermost array type derivation.

that is for the dimension that is equivalent to the pointer declaration.