logoalt Hacker News

tapirl • yesterday at 10:06 PM • 1 reply • view on HN

Another example (fixable):

    package main

    import "unsafe"

    //go:fix inline
    func foo[T any]() {
        var t T
        _ = 1 / unsafe.Sizeof(t)
    }

    func main() {
        foo[struct{}]()
    }
Go is a language full of details: https://go101.org/details-and-tips/101.html

Replies

tapirl • today at 12:49 AM

similar:

    package main

    //go:fix inline
    func foo[T [8]byte | [4]uint16]() {
        var v T
        var n byte = 1 << len(v) >> len(v)
        if n == 0 {
            println("T is [8]byte")
        } else {
            println("T is [4]uint16]")
        }
    }

    func main() {
        foo[[8]byte]()
    }