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Replace some suspicious extend calls

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David Tolnay 2020-06-05 21:48:53 -07:00
parent 985fcde844
commit a65034cfef
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1 changed files with 5 additions and 5 deletions
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10
src/lexical/math.rs
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@ -444,7 +444,7 @@ mod small {
#[inline]
pub fn mul(x: &[Limb], y: Limb) -> Vec<Limb> {
let mut z = Vec::<Limb>::default();
z.extend(x.iter().cloned());
z.extend_from_slice(x);
imul(&mut z, y);
z
}
@ -718,7 +718,7 @@ mod large {
#[inline]
pub fn add(x: &[Limb], y: &[Limb]) -> Vec<Limb> {
let mut z = Vec::<Limb>::default();
z.extend(x.iter().cloned());
z.extend_from_slice(x);
iadd(&mut z, y);
z
}
@ -819,8 +819,8 @@ mod large {
// z1 must be shifted m digits (2^(32m)) over.
// z2 must be shifted 2*m digits (2^(64m)) over.
let len = z0.len().max(m + z1.len()).max(2 * m + z2.len());
let mut result = Vec::<Limb>::with_capacity(len);
result.extend(z0.iter().cloned());
let mut result = z0;
result.reserve_exact(len - result.len());
iadd_impl(&mut result, &z1, m);
iadd_impl(&mut result, &z2, 2 * m);
@ -925,7 +925,7 @@ pub(crate) trait Math: Clone + Sized + Default {
fn from_u64(x: u64) -> Self {
let mut v = Self::default();
let slc = split_u64(x);
v.data_mut().extend(slc.iter().cloned());
v.data_mut().extend_from_slice(&slc);
v.normalize();
v
}