33 lines
948 B
Rust
33 lines
948 B
Rust
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use minimal_lexical::bigint;
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#[cfg(feature = "alloc")]
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pub use minimal_lexical::heapvec::HeapVec as VecType;
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#[cfg(not(feature = "alloc"))]
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pub use minimal_lexical::stackvec::StackVec as VecType;
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pub fn vec_from_u32(x: &[u32]) -> VecType {
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let mut vec = VecType::new();
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#[cfg(not(all(target_pointer_width = "64", not(target_arch = "sparc"))))]
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{
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for &xi in x {
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vec.try_push(xi as bigint::Limb).unwrap();
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}
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}
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#[cfg(all(target_pointer_width = "64", not(target_arch = "sparc")))]
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{
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for xi in x.chunks(2) {
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match xi.len() {
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1 => vec.try_push(xi[0] as bigint::Limb).unwrap(),
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2 => {
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let xi0 = xi[0] as bigint::Limb;
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let xi1 = xi[1] as bigint::Limb;
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vec.try_push((xi1 << 32) | xi0).unwrap()
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},
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_ => unreachable!(),
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}
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}
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}
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vec
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}
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