Re: if(int a = 0) lowered to "if (int a = (int a = 1;) , a)" ?
On Wednesday, 8 August 2018 at 13:13:24 UTC, aliak wrote: Go here https://run.dlang.io/is/tJ4vXm and click on the AST button :) It shows you what the code turns in to after all the semantic passes. Yeah... no... I'm aware of this cool thing )) I thought you have a hidden source of knowledge, where all available transformations back and fore are specified, somehow... ))
Re: if(int a = 0) lowered to "if (int a = (int a = 1;) , a)" ?
On Wednesday, 8 August 2018 at 12:58:24 UTC, Alex wrote: On Wednesday, 8 August 2018 at 11:58:50 UTC, aliak wrote: Found this out while just looking at lowerings. How do you "look at lowerings"? Is there a list, I'm not aware of? ;) Go here https://run.dlang.io/is/tJ4vXm and click on the AST button :) It shows you what the code turns in to after all the semantic passes.
Re: if(int a = 0) lowered to "if (int a = (int a = 1;) , a)" ?
On Wednesday, 8 August 2018 at 11:58:50 UTC, aliak wrote: Found this out while just looking at lowerings. How do you "look at lowerings"? Is there a list, I'm not aware of? ;)
Re: if(int a = 0) lowered to "if (int a = (int a = 1;) , a)" ?
On Wednesday, August 8, 2018 5:58:50 AM MDT aliak via Digitalmars-d-learn
wrote:
> Found this out while just looking at lowerings. Wondering if
> anyone knows the semantics involved here and where they are
> documented?
It's particularly useful when dealing with stuff like C functions that
return 0 on success or getting values from AAs. e.g.
if(auto value = key in aa)
{
}
> And, is there anyway to do it with multiple variables?
>
> I.e.
>
> if (int a = 0, int b = 0) {
> // ...
> }
I don't believe so.
- Jonathan M Davis
if(int a = 0) lowered to "if (int a = (int a = 1;) , a)" ?
Found this out while just looking at lowerings. Wondering if
anyone knows the semantics involved here and where they are
documented?
And, is there anyway to do it with multiple variables?
I.e.
if (int a = 0, int b = 0) {
// ...
}
Cheers,
- Ali
