NFC: Move low-level Montgomery arithmetic out of bigint.
#1652
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I just pushed a new version to fix the |
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src/arithmetic/montgomery.rs
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| // Nothing aliases `n` | ||
| let n = unsafe { core::slice::from_raw_parts(n, num_limbs) }; | ||
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| let mut tmp = [0; 2 * MODULUS_MAX_LIMBS]; |
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I think this should be BIGINT_MODULUS_MAX_LIMBS, with this tweak it successfully builds and passes tests with --no-default-features for powerpc64le-unknown-linux-gnu.
When the `alloc` feature is disabled, on lesser-used targets we don't
build `bigint` but we still need some of the Montgomery arithmetic.
```
git diff \
HEAD^1:src/arithmetic/bigint/bn_mul_mont_fallback.rs \
src/arithmetic/montgomery.rs
```
```
git diff \
HEAD^1:src/arithmetic/bigint.rs \
src/arithmetic/montgomery.rs
```
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@briansmith - I don't remember having an issue with In the meantime, I'll ask around with the other fuchsia people in case they remember something. |
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@erickt Sorry, it was a typo. I meant to ping erichte-ibm. |
When the
allocfeature is disabled, on lesser-used targets we don't buildbigintbut we still need some of the Montgomery arithmetic.