lourenco/mgmt
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

util: Handle negative values for NumToAlpha

Browse Source 
This shouldn't be used often, but it makes writing some kinds of code
easier.
This commit is contained in:
James Shubin
2023-06-29 15:14:06 -04:00
parent 97c7d176f0
commit df9b338279
2 changed files with 4 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
util/util.go
View File

@@ -33,6 +33,9 @@ import (
// you specify 0, you'll get `a`, 25 gives you `z`, and 26 gives you `aa` and so // you specify 0, you'll get `a`, 25 gives you `z`, and 26 gives you `aa` and so
// on... // on...
func NumToAlpha(idx int) string { func NumToAlpha(idx int) string {
if idx < 0 {
return "" // don't error or produce junk
}
var mod = idx % 26 var mod = idx % 26
var div = idx / 26 var div = idx / 26
if div > 0 { if div > 0 {

1
util/util_test.go
View File

@@ -38,6 +38,7 @@ func TestNumToAlpha(t *testing.T) {
{702, "aaa"}, {702, "aaa"},
{703, "aab"}, {703, "aab"},
{63269, "cool"}, {63269, "cool"},
{-1, ""},
} }
for _, test := range numToAlphaTests { for _, test := range numToAlphaTests {