Hi,
I have a question regarding hexadecimal floating-point literals. According to
the Lexical Structure
(https://developer.apple.com/library/prerelease/content/documentation/Swift/Conceptual/Swift_Programming_Language/LexicalStructure.html
<https://developer.apple.com/library/prerelease/content/documentation/Swift/Conceptual/Swift_Programming_Language/LexicalStructure.html>)
it is not possible to have a hex floating-point literal without the exponent.
At first I thought this makes sense.
How else would the lexer / parser know if 0x123.beef is a hex floating-point
literal or a hex integer literal with a property 'beef'?
However, if I define such a property on Int, it doesn’t work:
extension Int {
var beef: Int {
return 42
}
}
print(12.beef) // works
print(0b1001.beef) // works
print(0o77.beef) // works
print(0xabc.beef) // error: hexadecimal floating point literal must end
with an exponent
Is this just to avoid confusion for the programmer? Or is there some other
reason?
Thanks and best regards,
Toni_______________________________________________
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