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According to Rainer Orth on 10/19/2009 9:23 AM:
> checking for uint64_t... unsigned int
> $ gcc-3.4.4 -c conftest.c
> conftest.c: In function `main':
> conftest.c:4: warning: right shift count >= width of type
> $ echo $?
> 0
Thanks for the report. It is indeed a bug, and we should be able to work
around it. We need to break x>>63 into the more appropriate
((x>>31)>>31)>>1 to work around this. But before I work on the necessary
m4 magic, is it also a problem with smaller types? In other words, what
happens with:
int
main ()
{
static int test_array [1 - 2 * !((unsigned char) -1 >> (32 - 1) == 1)];
test_array [0] = 0
;
return 0;
}
- --
Don't work too hard, make some time for fun as well!
Eric Blake [email protected]
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