[cairo-bugs] [Bug 24995] New: CAIRO_FORMAT_VALID failed to work with Sun Studio C compiler

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=24995

           Summary: CAIRO_FORMAT_VALID failed to work with Sun Studio C
                    compiler
           Product: cairo
           Version: 1.9.3
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: general
        AssignedTo: cworth at cworth.org
        ReportedBy: ginn.chen at sun.com
         QAContact: cairo-bugs at cairographics.org


Created an attachment (id=31059)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=31059)
test

Test program attached.

ginn at opensolaris:~$ cc cairotest.c 
"cairotest.c", line 18: warning: initializer does not fit or is out of range:
0xffffffff
ginn at opensolaris:~$ ./a.out 
valid? 1
ginn at opensolaris:~$ gcc-4.3.2 cairotest.c 
ginn at opensolaris:~$ ./a.out 
valid? 0

I'm not sure if the behavior is implement dependent.
I think it would be safer if we use 0x7fffffff for CAIRO_FORMAT_INVALID or case
it to unsigned it in CAIRO_FORMAT_VALID.


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