Controls the compatibility of the char* and unsigned char* types.

This pragma is compatible with the following platform targets:

68K

PowerPC

NEC V800

Intel x86

MIPS

Embedded 68K

When you turn on this pragma, the compiler treats char* and unsigned char* as the same type. This option is especially useful if you're using code written before the ANSI C standard. This old source code frequently used these types interchangeably.

This option has no effect on C++ source code.

This pragma may be used to relax function pointer checking:

#pragma mpwc_relax on
extern void f(char *);
extern void(*fp1)(void *) = &f;          // error but allowed
extern void(*fp2)(unsigned char *) = &f; // error but allowed

This pragma corresponds to the Relaxed Pointer Type Rules option in the C/C++ Language Panel. To check whether this option is on, __option (mpwc_relax), described in "Checking Options."