Greg Ercolano wrote:
> MacArthur, Ian (SELEX GALILEO, UK) wrote:
>>>> I don't have
>>>> access to a big-endian 64-bit system to actually verify it on...!
>>> Thanks, I saw it in fltk.commit. I can't test it either (I'm prepared
>>> to install a 64-bit Ubuntu VM soon, though), but the code looks good
>>> to me, AFAICS.
>> OK - anyone got a 64-bit big-endian system? Must be someone with a PPC64
>> box somewhere I guess?
>
> I think my old SGI Indigo2 Extreme might qualify..
Latest fltk 1.3.x seems to build OK (with some fixes to unrelated code).
So e.g. in Fl_Preferences.cxx, the 'WORDS_BIGENDIAN' section compiled
without error.
Wasn't sure how to test it exactly, so I made a small foo.cxx
app with the BIGENDIAN code inserted in:
-----------------------------------------------------------
#include <stdio.h>
#include <time.h>
int main() {
time_t t = 1234;
unsigned char b[20];
union { void *pv; unsigned char a[sizeof(void*)]; } v;
v.pv = (void *)(&t);
// BIG ENDIAN
b[8] = v.a[sizeof(void*) - 1];
b[9] = v.a[sizeof(void*) - 2];
b[10] = v.a[sizeof(void*) - 3];
b[11] = v.a[sizeof(void*) - 4];
printf("%p %02x %02x %02x %02x\n", (void*)&t, (unsigned int)b[8],
(unsigned int)b[9], (unsigned int)b[10], (unsigned int)b[11]);
return(0);
}
-----------------------------------------------------------
When compiled and run, the result on the SGI (with -64 enabled):
-----------------------------------------------------------
# CC -64 -fullwarn -o foo foo.cxx
# ./foo
ffffffae80 80 ae ff ff
-----------------------------------------------------------
I guess that's "right"?
I tried changing the address to 0x9876543210 just to
make it obvious, then ran the code again to make sure
those bottom 4 bytes were being used, and result was
as expected:
-----------------------------------------------------------
# CC -64 -fullwarn -o foo foo.cxx
huron 61# ./foo
9876543210 10 32 54 76
\/\/\/\/ | | | |
| | | |_| | | |
| | |______| | |
| |___________| |
|________________|
-----------------------------------------------------------
_______________________________________________
fltk mailing list
[email protected]
http://lists.easysw.com/mailman/listinfo/fltk
