Anonymous struct is sufficient

winsize_linux.go

@@ -5,15 +5,14 @@ import (
 	"unsafe"
 )
 
-type winsize struct {
-	Row    uint16
-	Col    uint16
-	Xpixel uint16
-	Ypixel uint16
-}
-
 func init() {
-	ws := &winsize{}
+	ws := &struct {
+		row    uint16
+		col    uint16
+		xpixel uint16
+		ypixel uint16
+	}{}
+
 	retCode, _, errno := syscall.Syscall(syscall.SYS_IOCTL,
 		uintptr(syscall.Stdin),
 		uintptr(syscall.TIOCGWINSZ),
@@ -23,5 +22,5 @@ func init() {
 		panic(errno)
 	}
 
-	Width = int(ws.Col) - 2
+	Width = int(ws.col) - 2
 }