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Claified the arithmetic behind the max op.value

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This commit is contained in:
Ashley Svetlik 2019-06-14 13:44:04 -05:00
parent 56659f9d7b
commit 77cb1ea6d8
1 changed files with 4 additions and 1 deletions
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5
roaring/roaring.go
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@ -3961,7 +3961,10 @@ func (op *op) UnmarshalBinary(data []byte) error {
_, _ = h.Write(data[0:9])
if op.typ > 1 {
if 1152921504606847000 < int(op.value) {
// The maximum integer value for a int64 is 9223372036854775807
maxInt := 9223372036854775807
maxOpValue := maxInt/8-13
if maxOpValue < int(op.value) {
return fmt.Errorf("too big")
}
if len(data) < int(13+op.value*8) {