Re: [avr-gcc-list] Int32 Support

[Dave Hylands]

Hi Nigel,

Replying to list this time.

Hi Nigel,


> You forget the standard 'c' gotcha:
>
> external void fn(uint32_t, uint32_t);
> int main() {
>    uint32_t a = 0x10000000<<15;    /* produces no warning */
>    uint32_t b = 0x1111000000000000;
>    fn(a,b);                        //Use the variables
>    return -1;
>    }
>
> No warning is given but the variable a is set to zero.


I get this when I try to compile it:

> avr-gcc -c num.c
num.c: In function `main':
num.c:5: warning: integer constant is too large for "long" type
num.c:5: warning: large integer implicitly truncated to unsigned type

(that's with the 3.4.5 version of the compiler)

--
Dave Hylands
Vancouver, BC, Canada
http://www.DaveHylands.com/