Microchip Technology XC8 Standard Compiler (Workstation) SW006021-1 SW006021-1 User Manual

 2012 Microchip Technology Inc.

DS52053B-page 475

Variables qualified as eeprom cannot be auto. You can define static local objects 
qualified as eeprom, if required.

void main(void) {

    eeprom int mode;  // oops -- make this static or global

Variables qualified as eeprom cannot have type bit.

eeprom bit myEEbit;    // oops -- you can’t define bits in EEPROM

Variables qualified as far cannot be assigned an initial value. Assign the value later in 
the code.

far int chan = 0x1234; // oops -- you can’t assign a value here

The message number used with the warning pragma is below zero or larger than the 
highest message number available.

#pragma warning disable 1316 13350   // oops -- maybe number 1335?

The compiler will allow some functions to be called via a constant cast to be a function 
pointer, but not all. The address specified is not valid for this device.

foobar += ((int (*)(int))0x0)(77);

        // oops -- you can’t call a function with a NULL pointer

Program memory specified with the --ROM option is outside of the on-chip, or external, 
memory range supported by this device.

--ROM=default,+2000-2ffff

Oops -- memory too high, should that be 2fff?

Following the #pragma warning disable should be a comma-separated list of mes-
sage numbers to disable.

#pragma warning disable  // oops -- what messages are to be disabled?

Try something like the following.

#pragma warning disable 1362

An absolute object placed at address 0 has had its address taken. By definition, this is 
a NULL pointer and code which checks for NULL (i.e., checks to see if the address is 
valid) may fail.

int foobar @ 0x00;

int  * ip;

void

main(void)

{

ip = &foobar;  // oops -- 0 is not a valid address