golang.org/toolchain@v0.0.1-go1.9rc2.windows-amd64/blog/content/constants/exercise4.go (about)

     1  // +build OMIT
     2  
     3  package main
     4  
     5  func main() {
     6  	// START OMIT
     7  	var u uint
     8  	const v = -1
     9  	u = uint(v) // Error: negative value
    10  	// STOP OMIT
    11  	_ = u
    12  }