On Wed, Jan 28, 2009 at 3:46 PM, Douglas Gregor <[email protected]> wrote:
>
> On Jan 28, 2009, at 3:42 PM, Eli Friedman wrote:
>
>> On Wed, Jan 28, 2009 at 3:37 PM, Douglas Gregor <[email protected]> wrote:
>>>>
>>>> struct X { int a, b; };
>>>> struct X xs[] = { [0] = (struct X) { 1, 2 }, [0].b = 3 };
>>>>
>>>> In gnu89 mode in gcc, the init list is actually equivalent to "{1,
>>>> 3}". clang, on the other hand, will give different results (although
>>>> it will also warn, so it might not be so bad).
>>>
>>> since both Clang and GCC
>>> get the answer { 0, 3} in their default invocation modes
>>
>> gcc gets {1, 3}. But yeah, it's probably not a big deal.
>
> Which version of GCC are you using? With Apple GCC 4.0 and 4.2, compiling
> that code with no extra options results in {0, 3}.
e...@eli-laptop:~$ gcc -x c - -o - -S
struct X { int a, b; };
struct X xs[] = { [0] = (struct X) { 1, 2 }, [0].b = 3 };
.file ""
.globl xs
.data
.align 4
.type xs, @object
.size xs, 8
xs:
.long 1
.long 3
.ident "GCC: (Ubuntu 4.3.2-1ubuntu11) 4.3.2"
.section .note.GNU-stack,"",@progbits
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