On Sun, Feb 23, 2020 at 8:19 AM Jimu Yang wrote: > I am reading the doc about Assignability in Golang Specification > <https://golang.org/ref/spec#Assignability> . It says: > > A value x is *assignable* to a variable > <https://golang.org/ref/spec#Variables> of type T ("x is assignable to T") > if one of the following conditions applies: > > - ... > - x's type V and T have identical underlying types > <https://golang.org/ref/spec#Types> and at least one of V or T is not > a defined <https://golang.org/ref/spec#Type_definitions> type. > - ... > > > type str string > > func main() { > string1 := "string" > var str1 str = "str1" > str1 = string1 // cannot use string1 (type string) as type str in > assignment > } > > > string1's type string and str have identical underlying type (string) and > string is not a defined type. > > So why cannot i assign string1 to str1? >
According to the language specification ( https://golang.org/ref/spec#String_types), string is a defined type, and so it is distinct from your type str. -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CAOU-OAJXB%3DkMDKcJWTjmcP6KmM_9WOVpUeqAiTnoU_3ciuY_Uw%40mail.gmail.com.
