Re: [Glsdk-devel] The use of anonymous structures

[Branan R. <br...@gm...>]

Sounds good. Having names for the internal types in there makes it
harder to read, IMHO.

On Sun, Aug 24, 2008 at 9:14 AM, Henri Häkkinen <hen...@gm...> wrote:
> Yes. I hope we have reached a some sort of consensus that struct-unions are
> the way to go. For now, I will define the math types with anonymous unions
> and structures. We can use compiler magic to suppress warnings if need be.
>
> typedef struct {
>   union {
>     GLfloat data[2];
>     struct {
>       GLfloat x, y;
>     };
>   };
> } GLMvec2f;
>
>
> On Sun, Aug 24, 2008 at 5:16 PM, Stefanos A. <sta...@gm...> wrote:
>>
>>
>> On Sun, Aug 24, 2008 at 6:31 AM, Branan Riley <br...@gm...> wrote:
>> >         Could be a different version of MSVC giving different
>> >         warnings.
>>
>> Actually no, just stricter warnings (warning level 4, where the default
>> is 3). GCC doesn't produce any warnings even with -Wall.
>>
>> However, please note that the anonymous union is *not* valid C89 (fails
>> to compile with "gcc -ansi"). I'm not saying this is a problem (//-style
>> comments aren't valid C89 either), just something to keep in mind and
>> document.
>>
>> // Not valid C89
>> union
>> {
>>    float data[2];
>>    struct { float x, y; };
>> };
>>
>> /* Valid C89 */
>> union foo_union
>> {
>>    float data[2];
>>    struct bar_struct { float x, y; } bar;
>> } foo;
>>
>> Anyone knows if these have been standardized in C99?
>>
>>
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>
>
>
> --
> Henri 'henux' Häkkinen
>
>
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