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cleanup from comments

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This commit is contained in:
Nicholas Ward 2023-03-20 16:12:52 -07:00
parent 42d65839e7
commit be309a388f
1 changed files with 8 additions and 8 deletions
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16
evm/src/util.rs
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@ -162,14 +162,14 @@ pub(crate) fn mem_vec_to_biguint(x: &[U256]) -> BigUint {
}
pub(crate) fn biguint_to_mem_vec(x: BigUint) -> Vec<U256> {
let mut digits = x.to_u32_digits();
let num_limbs = ((x.bits() + 127) / 128) as usize;
// Pad to a multiple of 4.
digits.resize((digits.len() + 3) / 4 * 4, 0);
let mut digits = x.iter_u64_digits();
digits
.chunks(4)
.map(|c| (c[3] as u128) << 96 | (c[2] as u128) << 64 | (c[1] as u128) << 32 | c[0] as u128)
.map(|n| n.into())
.collect()
let mut mem_vec = Vec::with_capacity(num_limbs);
while let Some(lo) = digits.next() {
let hi = digits.next().unwrap_or(0);
mem_vec.push(U256::from(lo as u128 | (hi as u128) << 64));
}
mem_vec
}