add atol and ltoa. probably want unsigned at some point too.

R=rsc
DELTA=14  (10 added, 0 deleted, 4 changed)
OCL=17387
CL=17390

diff --git a/src/lib/strings.go b/src/lib/strings.go
index 4a2184341f74584a59d3d188b6fd4041e0f62d0e..b83f2736cf13ba34ba8d318c78d22ddccae6554d 100644 (file)
--- a/src/lib/strings.go
+++ b/src/lib/strings.go
@@ -118,7 +118,7 @@ export func join(a *[]string, sep string) string {
 
 // Convert decimal string to integer.
 // TODO: Doesn't check for overflow.
-export func atoi(s string) (i int, ok bool) {
+export func atol(s string) (i int64, ok bool) {
        // empty string bad
        if len(s) == 0 { 
                return 0, false
@@ -149,12 +149,12 @@ export func atoi(s string) (i int, ok bool) {
        }
 
        // parse number
-       n := 0;
+       n := int64(0);
        for i := 0; i < len(s); i++ {
                if s[i] < '0' || s[i] > '9' {
                        return 0, false
                }
-               n = n*10 + int(s[i] - '0')
+               n = n*10 + int64(s[i] - '0')
        }
        if neg {
                n = -n
@@ -162,7 +162,13 @@ export func atoi(s string) (i int, ok bool) {
        return n, true
 }
 
-export func itoa(i int) string {
+export func atoi(s string) (i int, ok bool) {
+       ii, okok := atoi(s);
+       i = int32(ii);
+       return i, okok
+}
+
+export func itol(i int64) string {
        if i == 0 {
                return "0"
        }
@@ -189,3 +195,7 @@ export func itoa(i int) string {
        // BUG return string(b[bp:len(b)])
        return string((&b)[bp:len(b)])
 }
+
+export func itoa(i int) string {
+       return itol(int64(i));
+}