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Merely require FnMut #9

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Merely require FnMut #9

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6 changes: 3 additions & 3 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -179,7 +179,7 @@ pub fn make_dataset(dataset: &mut [u8], cache: &[u8]) {

/// "Main" function of Ethash, calculating the mix digest and result given the
/// header and nonce.
pub fn hashimoto<F: Fn(usize) -> H512>(
pub fn hashimoto<F: FnMut(usize) -> H512>(
header_hash: H256, nonce: H64, full_size: usize, lookup: F
) -> (H256, H256) {
hashimoto_with_hasher(
Expand All @@ -204,8 +204,8 @@ pub fn hashimoto<F: Fn(usize) -> H512>(
)
}

pub fn hashimoto_with_hasher<F: Fn(usize) -> H512, HF256: Fn(&[u8]) -> [u8; 32], HF512: Fn(&[u8]) -> [u8; 64]>(
header_hash: H256, nonce: H64, full_size: usize, lookup: F, hasher256: HF256, hasher512: HF512
pub fn hashimoto_with_hasher<F: FnMut(usize) -> H512, HF256: FnMut(&[u8]) -> [u8; 32], HF512: FnMut(&[u8]) -> [u8; 64]>(
header_hash: H256, nonce: H64, full_size: usize, mut lookup: F, mut hasher256: HF256, mut hasher512: HF512
) -> (H256, H256) {
let n = full_size / HASH_BYTES;
let w = MIX_BYTES / WORD_BYTES;
Expand Down