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

In C you have to put const between the [], however strange that might look to an unprepared person

void foo(char arr_arg[const]);

This is "new" C99-specific syntax. In C89/90 or C++ there no way to do it with "array" syntax, so you have to switch to the equivalent "pointer" syntax, as suggested in David's answer.