When I initially saw it, I was hopeful that it would allow me to bypass some of the restrictions of const
, but it literally just takes a type and strips the const
from it, you can't pass a variable to it in order to get rid of const
. What use does it serve then?
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July 28, 2021 Why does Unconst exist? | ||||
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July 27, 2021 Re: Why does Unconst exist? | ||||
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Posted in reply to Tejas | On 7/27/21 10:38 PM, Tejas wrote:
> When I initially saw it, I was hopeful that it would allow me to bypass some of the restrictions of ```const``` , but it literally just takes a type and strips the ```const``` from it, you can't pass a variable to it in order to get rid of ```const``` . What use does it serve then?
>
> https://dlang.org/library/std/traits/unconst.html
Searching under /usr/include/dmd reveals that it is used in the implementations of array property 'dup' and 'copyEmplace', which makes sense: We want copies to be mutable.
Ali
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July 28, 2021 Re: Why does Unconst exist? | ||||
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Posted in reply to Tejas | On Wednesday, 28 July 2021 at 05:38:44 UTC, Tejas wrote: >When I initially saw it, I was hopeful that it would allow me to bypass some of the restrictions of To manipulate types in template metaprogramming. To remove |
July 28, 2021 Re: Why does Unconst exist? | ||||
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Posted in reply to Ali Çehreli | On Wednesday, 28 July 2021 at 05:52:02 UTC, Ali Çehreli wrote: >On 7/27/21 10:38 PM, Tejas wrote: >When I initially saw it, I was hopeful that it would allow me to bypass some of the restrictions of Searching under /usr/include/dmd reveals that it is used in the implementations of array property 'dup' and 'copyEmplace', which makes sense: We want copies to be mutable. Ali So it's only useful for the compiler developers? I thought Walter was 100% against introducing any dependency to phobos in dmd? Shouldn't this be part of |
July 28, 2021 Re: Why does Unconst exist? | ||||
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Posted in reply to user1234 | On Wednesday, 28 July 2021 at 05:57:31 UTC, user1234 wrote: >On Wednesday, 28 July 2021 at 05:38:44 UTC, Tejas wrote: >When I initially saw it, I was hopeful that it would allow me to bypass some of the restrictions of To manipulate types in template metaprogramming. To remove Oh... that makes sense... then it shouldn't exist in |