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From: H. H. <hen...@gm...> - 2008-08-24 16:14:46
|
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 |
|
From: Branan R. <br...@gm...> - 2008-08-24 17:06:37
|
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?
>>
>>
>> -------------------------------------------------------------------------
>> This SF.Net email is sponsored by the Moblin Your Move Developer's
>> challenge
>> Build the coolest Linux based applications with Moblin SDK & win great
>> prizes
>> Grand prize is a trip for two to an Open Source event anywhere in the
>> world
>> http://moblin-contest.org/redirect.php?banner_id=100&url=/
>> _______________________________________________
>> Glsdk-devel mailing list
>> Gls...@li...
>> https://lists.sourceforge.net/lists/listinfo/glsdk-devel
>
>
>
> --
> Henri 'henux' Häkkinen
>
>
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
> Build the coolest Linux based applications with Moblin SDK & win great
> prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> _______________________________________________
> Glsdk-devel mailing list
> Gls...@li...
> https://lists.sourceforge.net/lists/listinfo/glsdk-devel
>
>
|
|
From: H. H. <hen...@gm...> - 2008-08-24 17:09:22
|
That is also what I think too.
On Sun, Aug 24, 2008 at 8:06 PM, Branan Riley <br...@gm...> wrote:
> 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?
> >>
> >>
> >>
> -------------------------------------------------------------------------
> >> This SF.Net email is sponsored by the Moblin Your Move Developer's
> >> challenge
> >> Build the coolest Linux based applications with Moblin SDK & win great
> >> prizes
> >> Grand prize is a trip for two to an Open Source event anywhere in the
> >> world
> >> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> >> _______________________________________________
> >> Glsdk-devel mailing list
> >> Gls...@li...
> >> https://lists.sourceforge.net/lists/listinfo/glsdk-devel
> >
> >
> >
> > --
> > Henri 'henux' Häkkinen
> >
> >
> > -------------------------------------------------------------------------
> > This SF.Net email is sponsored by the Moblin Your Move Developer's
> challenge
> > Build the coolest Linux based applications with Moblin SDK & win great
> > prizes
> > Grand prize is a trip for two to an Open Source event anywhere in the
> world
> > http://moblin-contest.org/redirect.php?banner_id=100&url=/
> > _______________________________________________
> > Glsdk-devel mailing list
> > Gls...@li...
> > https://lists.sourceforge.net/lists/listinfo/glsdk-devel
> >
> >
>
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's
> challenge
> Build the coolest Linux based applications with Moblin SDK & win great
> prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> _______________________________________________
> Glsdk-devel mailing list
> Gls...@li...
> https://lists.sourceforge.net/lists/listinfo/glsdk-devel
>
--
Henri 'henux' Häkkinen |
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