C#•3mo ago

How do i quickly convert to base 9 ?

12 Replies

FriteOP•3mo ago

am i forced to create an entire base converter ?

Yeah looks like that only supports some specific bases. Take a look at https://stackoverflow.com/questions/923771/quickest-way-to-convert-a-base-10-number-to-any-base-in-net

Stack Overflow

Quickest way to convert a base 10 number to any base in .NET?

I have and old(ish) C# method I wrote that takes a number and converts it to any base: string ConvertToBase(int number, char[] baseChars); It's not all that super speedy and neat. Is there a good,

FriteOP•3mo ago

:catsweat:

Angius•3mo ago

Not hard to convert to/from any base by hand https://github.com/Atulin/AnyBaseConverter/blob/master/AnyBaseConverter/AnyBaseConverter.cs

joy•3mo ago

Yep, Convert.ToString only supports base 2, 8, 10, 16.

FriteOP•3mo ago

i'm not sure about this one, it uses while loop. i need a lot of performance so i would use the mathematic method

Angius•3mo ago

How do you, mathematically, convert between base 2 and base 10? Without using a loop

FriteOP•3mo ago

i remember doing it at school but its only to base 10 you're right

canton7•3mo ago

I think using a List instead of a StringBuilder would be more efficient there:

var result = new List<char>();
// ...
result.Add(...);
// ...
return string.Concat(result.AsEnumerable().Reverse());

var result = new List<char>();
// ...
result.Add(...);
// ...
return string.Concat(result.AsEnumerable().Reverse());

That avoids having to constantly shuffle stuff around in the StringBuilder to make more room at the front

Angius•3mo ago

Could be, I'd have to benchmark it ig

FriteOP•3mo ago

alright this is the result

FriteOP•3mo ago

but because of performance issue my bot is very dumb

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How do i quickly convert to base 9 ?