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Use Vec::with_capacity for bytes_le_to_vec_fr (#321)

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Sydhds
2025-06-23 10:13:39 +02:00
committed by GitHub
parent dc0b31752c
commit baf474e747
1 changed files with 2 additions and 3 deletions
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5
rln/src/utils.rs
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@@ -14,7 +14,7 @@ pub fn to_bigint(el: &Fr) -> BigInt {
}
#[inline(always)]
pub fn fr_byte_size() -> usize {
pub const fn fr_byte_size() -> usize {
let mbs = <Fr as PrimeField>::MODULUS_BIT_SIZE;
((mbs + 64 - (mbs % 64)) / 8) as usize
}
@@ -106,10 +106,9 @@ pub fn bytes_le_to_vec_u8(input: &[u8]) -> Result<(Vec<u8>, usize), ConversionEr
#[inline(always)]
pub fn bytes_le_to_vec_fr(input: &[u8]) -> Result<(Vec<Fr>, usize), ConversionError> {
let mut read: usize = 0;
let mut res: Vec<Fr> = Vec::new();
let len = usize::try_from(u64::from_le_bytes(input[0..8].try_into()?))?;
read += 8;
let mut res: Vec<Fr> = Vec::with_capacity(len);
let el_size = fr_byte_size();
for i in 0..len {