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kotlinlang

In Kotlin Native how would I find the number of bytes in a utf-8 string?
```
    @Test
    fun `The number of bytes in a euro is three`(){
        //count and length return 1 but a euro symbol is a multibyte character
        assertEquals(3, "€".count, "Wrong number of bytes for a Euro.") 
    }
```

If you have access to kotlinx.serialization, you can use its `String.toUtf8Bytes()` extension function and call `size` on the result.

`kotlin.native.toUtf8()`
<https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.native/to-utf8.html>

Thanks, the second suggestion looks like what I need.