mpwc_relax

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

Syntax

  #pragma mpwc_relax on | off | reset

Remarks

If you enable this pragma, the compiler treats char* and unsigned char* as the same type. Use this setting to compile source code written before the ISO C standards. Old source code frequently uses these types interchangeably.

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

Note: Turning this option on may prevent the compiler from detecting some programming errors. We recommend not turning on this option.

Listing: Relaxing function pointer checking shows how to use this pragma to relax function pointer checking.

Listing: Relaxing function pointer checking


#pragma mpwc_relax on

extern void f(char *);

/* Normally an error, but allowed. */

extern void(*fp1)(void *) = &f; 

/* Normally an error, but allowed. */

extern void(*fp2)(unsigned char *) = &f;

This pragma does not correspond to any panel setting. By default, this pragma is disabled.