int not 2 byte not volume +32767-3276

[pic877]

i write program read value from atd an0-an5 of 16f877 by code this

int x;


x=readadc();

x cann't show value 1024 if value from readadc(); more 127 x is = -128


help me i can't understand int not 2 byte?

[pic877]

and i printf to rs232 by code

printf("%d",x);


it show -128 ---> 127 only

but i change code is
long x;

x=readatd();
printf("%ld",x);

it work! i think ccs is not ansi c langguage it new c style !!!!

[SteveS]

ANSI C does not set the actual physical size of various data types (I think), so, in this case CCS is perfectly legal in saying an int is 8 bits. I have found (or actually learned from others on this list) that you will save yourself many headaches by using int8, int16 etc. It's a good reminder of the actual size of the variable you are creating, esp when you switch between embedded PIC and Windows programming as I do.

- SteveS