• Adam Sansier (8/8) Jul 11 2016 I need to align every member of every struct in a module. I can't
• Adam D. Ruppe (6/13) Jul 12 2016 Right. To align the members, you put align(x) on the individual
• Adam Sansier (7/20) Jul 12 2016 Because god said so.. I can't change it, not everything is in my
• Adam D. Ruppe (3/6) Jul 12 2016 This is trivial, just add it to the bindings.
• Adam Sansier (9/16) Jul 12 2016 It's not trivial, a global modifier similar to pragma(align(n))

Adam Sansier <Adam.Sansier gmail.com> writes:

I need to align every member of every struct in a module. I can't 
simply add align(n) inside every struct because that seems 
ridiculous. I could search and paste, but then D is missing a 
relatively important aspect of alignment.

I have about 100 struct's to align, member wise. From what I've 
read, align(n){ struct x; } only aligns the struct itself, is 
this true? Is there a way to set global alignment for members per 
module or per scope?

Adam D. Ruppe <destructionator gmail.com> writes:

On Tuesday, 12 July 2016 at 00:20:31 UTC, Adam Sansier wrote:
 I need to align every member of every struct in a module. I 
 can't simply add align(n) inside every struct because that 
 seems ridiculous.

Why are these structs needing the alignment?

 From what I've read, align(n){ struct x; } only aligns the 
 struct itself, is this true?

Right. To align the members, you put align(x) on the individual 
members (or align(x): at the top of the struct to apply to all of 
them)

 Is there a way to set global alignment for members per module 
 or per scope?

no

Adam Sansier <Adam.Sansier gmail.com> writes:

On Tuesday, 12 July 2016 at 14:26:54 UTC, Adam D. Ruppe wrote:
 On Tuesday, 12 July 2016 at 00:20:31 UTC, Adam Sansier wrote:
 I need to align every member of every struct in a module. I 
 can't simply add align(n) inside every struct because that 
 seems ridiculous.

 Why are these structs needing the alignment?

Because god said so.. I can't change it, not everything is in my 
control.


 From what I've read, align(n){ struct x; } only aligns the 
 struct itself, is this true?

 Right. To align the members, you put align(x) on the individual 
 members (or align(x): at the top of the struct to apply to all 
 of them)

 Is there a way to set global alignment for members per module 
 or per scope?

 no

Um, because that's the way they were defined! So your telling me 
that D is going to make me mark every member align(n) when C++ 
has a global pragma align that does it for all in the scope? I 
thought D was better than C++?

Adam D. Ruppe <destructionator gmail.com> writes:

On Tuesday, 12 July 2016 at 14:54:25 UTC, Adam Sansier wrote:
 Um, because that's the way they were defined! So your telling 
 me that D is going to make me mark every member align(n) when 
 C++ has a global pragma align that does it for all in the scope?

This is trivial, just add it to the bindings.

:s/struct \(.*\) {/struct \1 {\ralign(1):

Adam Sansier <Adam.Sansier gmail.com> writes:

On Tuesday, 12 July 2016 at 15:08:29 UTC, Adam D. Ruppe wrote:
 On Tuesday, 12 July 2016 at 14:54:25 UTC, Adam Sansier wrote:
 Um, because that's the way they were defined! So your telling 
 me that D is going to make me mark every member align(n) when 
 C++ has a global pragma align that does it for all in the 
 scope?

 This is trivial, just add it to the bindings.

 :s/struct \(.*\) {/struct \1 {\ralign(1):

It's not trivial, a global modifier similar to pragma(align(n)) 
would be trivial.

Your method makes many assumptions that may not hold. What if the 
struct is templated(possible), what if it has comments after 
struct and before {, etc? It's a hack that is not a solution. The 
proper solution is to have a way to properly specify that a 
struct has all members aligned without having to specify it on 
all members or per struct.