why wont it printf struct correctly

[vector]

Hi
I sneaked around this problem b4but would like to solve/understand it properly. why cant i printf a srtruct? and passing a struct doesnt work either.
<<code snip
printf("%x",flag); //this should print the sruct

my current fix
char tmp;
tmp=flag;
printf(%x",tmp);


//set up flags within status byte
struct flag_typ {
unsigned f_run:1; //run
unsigned f_htr:1; //heater
unsigned f_alm:1; //alarm flag
unsigned f_fan:1; //fan pin

unsigned f_ful:1; //memfull
unsigned f_cwl:1; //cool flag
unsigned f_spr:1; //spare
unsigned f_usr:1; //display current data (mod_ee) on
}flag;

[PCM programmer]

You didn't say whether the error you're getting is a compile-time
error or a run-time error. (You also didn't give your compiler version).

I couldn't even compile it. It says "A numeric expression must
appear here".

Upon examining the code, my first thought was "printf is expecting
a char, I would guess, and you're giving it a type".

So my fix would be to cast it to a char. Like this:

printf("%x", (char)flag);

That compiles, and upon looking at the .LST file, it looks like it
should work.

[Guest]

many thanks
I just had that same thought myself and tried the (char) trick and sure enough it works
cheers