Use strconv instead of fmt in values' String funcs

The existing implementation of flag values with fmt package uses
more memory and works slower than the implementation with strconv
package.

1 files changed, 2 insertions, 5 deletions

diff --git a/int.go b/int.go
index b656036..1474b89 100644
--- a/int.go
+++ b/int.go
@@ -1,9 +1,6 @@
 package pflag
 
-import (
-	"fmt"
-	"strconv"
-)
+import "strconv"
 
 // -- int Value
 type intValue int
@@ -23,7 +20,7 @@ func (i *intValue) Type() string {
 	return "int"
 }
 
-func (i *intValue) String() string { return fmt.Sprintf("%v", *i) }
+func (i *intValue) String() string { return strconv.Itoa(int(*i)) }
 
 func intConv(sval string) (interface{}, error) {
 	return strconv.Atoi(sval)