[Issue 20302] std.functional.memoize doesn't accept a functions with const/immutable parameters

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20302

Dlang Bot <dlang-bot at dlang.rocks> changed:

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--- Comment #1 from Dlang Bot <dlang-bot at dlang.rocks> ---
@ZombineDev created dlang/phobos pull request #7231 "Fix issues 20301 and
20302" fixing this issue:

- Fix issue 20302 - Support head const in memoize

  Make std.functional.memoize accept functions whose return type or
  parameters are head const.

https://github.com/dlang/phobos/pull/7231

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