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Fix ToUint64 issue with string input exceeding maximum int64 #213

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merged 1 commit into from
Oct 18, 2024
+8 −2
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Fix ToUint64 issue with string input exceeding maximum int64 #213

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6 changes: 6 additions & 0 deletions cast_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -111,6 +111,12 @@ func TestToUintE(t *testing.T) {
func TestToUint64E(t *testing.T) {
tests := createNumberTestSteps(uint64(0), uint64(1), uint64(8), uint64(0), uint64(8), uint64(8))

// Maximum value of uint64
tests = append(tests,
testStep{"18446744073709551615", uint64(18446744073709551615), false},
testStep{"18446744073709551616", uint64(0), true},
)

runNumberTest(
qt.New(t),
tests,
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4 changes: 2 additions & 2 deletions caste.go
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Original file line number Diff line number Diff line change
Expand Up @@ -598,12 +598,12 @@ func ToUint64E(i interface{}) (uint64, error) {

switch s := i.(type) {
case string:
v, err := strconv.ParseInt(trimZeroDecimal(s), 0, 0)
v, err := strconv.ParseUint(trimZeroDecimal(s), 0, 0)
if err == nil {
if v < 0 {
return 0, errNegativeNotAllowed
}
return uint64(v), nil
return v, nil
}
return 0, fmt.Errorf("unable to cast %#v of type %T to uint64", i, i)
case json.Number:
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