fmt.Fprintf(&sb, "var _cgo%d %s = %s; ", i,
				gofmtLine(ptype), gofmtPos(arg, origArg.Pos()))
			continue
		}

		// Check for &a[i].
		if p.checkIndex(&sb, &sbCheck, arg, i) {
			continue
		}

		// Check for &x.
		if p.checkAddr(&sb, &sbCheck, arg, i) {
			continue
		}

		// Check for a[:].
		if p.checkSlice(&sb, &sbCheck, arg, i) {
			continue
		}