...phobos pull request #7507 "Fix issue 20099 - Memoize should handle lambdas" fixing this issue:

- Fix...

...the program I did Find 'memoize' which worked. Then 'memoize python' which also worked. Then...

...phobos pull request #7311 "Fixes 20439: fix memoize return statement" was merged into master:

- 398d63169eb250bc125c62a59e1cc5922e31df29...

...20302 - Support head const in memoize

  Make std.functional.memoize accept functions whose return type...

...20302 - Support head const in memoize

  Make std.functional.memoize accept functions whose return type...

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

ZombineDev <petar.p.kirov@gmail.com...

...com

void main()
{
    import std.functional : memoize;
    alias mfun = memoize!fun;
    mfun("asd", 3);
}

const...

...cached();  // Error
}


Error: function std.functional.memoize!(test).memoize(int _param_0) is not
callable...

...also gonna suggest using std.functional.memoize to memoize the function in map, but apparently...

...like memoize!(a => a.field). Suggested new implementation:

template memoize(alias fun) {
    auto memoize(Args...