extern "C" should not make a difference.

[Han Holl]

The following:

void f(unsigned char *(*)[][2]); 
produces:

t6.C:3: pointer or reference to array of unknown bound in parm type

But with extern "C" linkage, it compiles (even with -W -Wall -pedantic -ansi).

Stroustrup 3ed, 9.2.4, pg 206:
"In particular,a function declared extern "C" still obeys the C++ type
checking and argument conversion rules and not the weaker C rules."

It looks like egcs uses name mangling for error checking purposes.

Han Holl