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add non-zero assert in field batch_invert

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root 2019-08-01 15:02:15 +08:00
parent a659b92305
commit 2a46cd3b20
1 changed files with 3 additions and 0 deletions
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3
src/field.rs
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@ -154,6 +154,9 @@ impl FieldElement {
acc = &acc * input; acc = &acc * input;
} }
// acc is nonzero iff all inputs are nonzero
assert_eq!(acc.is_zero().unwrap_u8(), 0);
// Compute the inverse of all products // Compute the inverse of all products
acc = acc.invert(); acc = acc.invert();