Can I say the type of the integer constant “12” is converted from the default type “int” to “int32” when it is assigned to the constant “n1” whose type is “int32” ?
const n1 int32 = 12
Go programmimg language specification says “An untyped constant has a default type which is the type to which the constant is implicitly converted in contexts where a typed value is required.”
No, not really. “12” is an untyped integer constant. If you use it in a context where the type isn’t specified but a type is needed, it defaults to int. So these two are equivalent:
a := 12
b := int(12)
In your example, there is a context in which to interpret 12: const n1 int32. This means that for the assignment to work, 12 needs to be an int32. But it was never int, so there’s no real conversion happening.
This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.