What is the maximum length of string? I imagine it can

Question

What is the maximum length of string? I imagine it can

be, at most, uint32 max so 4294967295 characters.

And each character is a byte so 34359738360 bits is a bit more than 4 gigabytes, this is for 32-bit systems. 64 is larger but aiming for 32-bit will probably be the safest for compatibility.

Can someone check my calculations?

0

12.09.2021

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Liλn 🌻 Автор вопроса

AngryMethane
You can use len() function to get the length of a ...

It’s int instead of uint? That seems inefficient. Can strings be negative length?

0

12.09.2021

Dxr

Liλn 🌻
It’s int instead of uint? That seems inefficient. ...

its useless but not a problem int of 64bits can represent until 9223372036854775807 -> over 8000 petabytes..

0

12.09.2021

🇺🇦 Anton

Character not always 1 bite

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12.09.2021

Liλn 🌻 Автор вопроса

🇺🇦 Anton
Character not always 1 bite

I know, a character is a rune. I was talking about an ASCII char actually

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12.09.2021

AngryMethane

Liλn 🌻
It’s int instead of uint? That seems inefficient. ...

Why do you think int is less efficient than uint? uint has a few inconspicuous bugs

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12.09.2021

Liλn 🌻 Автор вопроса

AngryMethane
Why do you think int is less efficient than uint? ...

Such as? All I know is uint should be used for when no negative numbers are required. This is a clear example.

0

12.09.2021

AngryMethane

Liλn 🌻
Such as? All I know is uint should be used for wh...

You can run this piece of code package main import "fmt" func main() { var a uint8 s := "This is string" a = uint8(len(s)) - 1 for ; a >= 0; a-- { fmt.Printf("%c\n", s[a]) } }

0

12.09.2021

Liλn 🌻 Автор вопроса

AngryMethane
You can run this piece of code package main impo...

Indexing strings by position is bad

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12.09.2021

AngryMethane

Liλn 🌻
Indexing strings by position is bad

This is just an example. s can be any type which can be iterated, such as a slice or an array.

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12.09.2021

Liλn 🌻 Автор вопроса

AngryMethane
Why do you think int is less efficient than uint? ...

You said “bug” this is not a bug. It’s literally an unsigned int, which has double capacity for positive numbers vs the same bit length int

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12.09.2021

AngryMethane · Accepted Answer

AngryMethane

You can use len() function to get the length of a string, and len() returns a number with int type. Also from the runtime representation of a string, the Len field is of type int. And the int type is usually 32 bits on 32-bit systems and 64 bits on 64-bit systems.

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12.09.2021

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What is the maximum length of string? I imagine it can

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