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U64 Subtraction Overflow Error #350

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icegriffinguru opened this issue Jun 3, 2024 · 1 comment
Closed

U64 Subtraction Overflow Error #350

icegriffinguru opened this issue Jun 3, 2024 · 1 comment

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@icegriffinguru
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Describe the bug
I accidently subtracted 10^9 from 0u64 and it did not throw an error but returned 2^64 - 10^9.

Suggest
Is there a way implementing SafeMath operation to check math overflows?
@Ben-Rey
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Ben-Rey commented Jun 10, 2024

I think what you need is: https://github.com/massalabs/as/blob/193a8f5d77d0a9c99c1aad9141c62a5489cd0e9c/packages/as-types/assembly/safeMath.ts#L13

@Ben-Rey Ben-Rey closed this as completed Jun 10, 2024
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@Ben-Rey @icegriffinguru