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[math/big] Return 0, .Integer_Underflow if trying to get a negative number to an unsigned int.

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Jeroen van Rijn
2021-12-09 16:31:54 +01:00
parent c94098c2ab
commit b2b79b86f0
1 changed files with 5 additions and 0 deletions
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core/math/big/internal.odin
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@@ -2332,7 +2332,12 @@ internal_int_get :: proc(a: ^Int, $T: typeid) -> (res: T, err: Error) where intr
if a.sign == .Zero_or_Positive { if a.sign == .Zero_or_Positive {
target_bit_size -= 1 target_bit_size -= 1
} }
} else {
if a.sign == .Negative {
return 0, .Integer_Underflow
}
} }
bits_used := internal_count_bits(a) bits_used := internal_count_bits(a)
if bits_used > target_bit_size { if bits_used > target_bit_size {