[swift-users] Ambiguous error for setting a value in a CChar array

[Adam Campbell]

Discovered this when trying to answer a stackoverflow question about
setting character values in a CCString array.

The following code produces an ambiguous error:
var buff = [CChar](count: 5, repeatedValue: 0)
buff[0] = "A".utf8.first!.value // Error - Cannot assign value of type
'Int8' to type 'CChar' (aka 'Int8')

I can easily get around this by changing the second line to:
buff[0].value = "A".utf8.first!.value

Can someone explain what is happening here? As well as the significance of
Int8.value?

Thanks in advance,
Adam
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