diff options
-rw-r--r-- | gcd.go | 24 |
1 files changed, 10 insertions, 14 deletions
@@ -21,8 +21,8 @@ package main // Both Google Go and GCC issue an error "imported and not used", // if imported and not used :-) import ( - "flag" "fmt" + "os" "strconv" ) @@ -45,18 +45,14 @@ func gcdn(ns []uint64) (r uint64) { } func main() { - flag.Parse() // without this 6g will give flag.NArg() = 0 next (WTF?) - n := flag.NArg() - if n > 0 { - ns := make([]uint64, n) // We have garbage collector! - - // Or: for i := range ns, since range of ns is equal to flag.NArg() - for i := 0; i < n; i++ { - // Drop the second return value (error code): - ns[i], _ = strconv.ParseUint(flag.Arg(i), 0, 64) - } - - g := gcdn(ns) - fmt.Printf("%v\n", g) + if len(os.Args) == 0 { + return } + var ns []uint64 // We have garbage collector! + for _, arg := range os.Args { + // Drop the second return value (error code): + v, _ := strconv.ParseUint(arg, 0, 64) + ns = append(ns, v) + } + fmt.Printf("%v\n", gcdn(ns)) } |