Multi-exponentiation

[ycscaly]

Resolves #250

[ycscaly]

@tarcieri

[ycscaly]

@tarcieri can you help me figure out the build problems? I think its due to my changes

[tarcieri]

@ycscaly looks like you did a cargo update or something. Try resetting Cargo.lock?

[ycscaly]

@tarcieri can you help me figure out the build problems? I think its due to my changes

Yeah. Because I can't compile against the Cargo.lock from main. I resetted and the CI is green whilst locally I can't run the code

[tarcieri]

What's the local error?

[ycscaly]

What's the local error?

On Mac M1

error[E0635]: unknown feature `proc_macro_span_shrink`
  --> /Users/jcscaly/.cargo/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/src/lib.rs:92:30
   |
92 |     feature(proc_macro_span, proc_macro_span_shrink)
   |                              ^^^^^^^^^^^^^^^^^^^^^^

[tarcieri]

What Rust version are you using?

[ycscaly]

What Rust version are you using?

➜  crypto-bigint git:(multiexp) ✗ cargo --version
cargo 1.75.0-nightly (b4d18d4bd 2023-10-31)
➜  crypto-bigint git:(multiexp) ✗ rustup --version
rustup 1.26.0 (5af9b9484 2023-04-05)
info: This is the version for the rustup toolchain manager, not the rustc compiler.
info: The currently active `rustc` version is `rustc 1.75.0-nightly (9d83ac217 2023-10-31)`
➜  crypto-bigint git:(multiexp) ✗

[tarcieri]

Yeah, that seems like a nightly regression. Try stable?

[ycscaly]

Yeah, that seems like a nightly regression. Try stable?

works, had rust-toolchain set to nightly for some reason. So the current code is fine to be merged by me.

[ycscaly]

@tarcieri OK I did so, but couldn't use const_assert in the alloc function, so used assert.

[ycscaly]

Thanks!

[ycscaly]

@tarcieri are we too late for the release?

[tarcieri]

Nope, though I'd like to get #277 in as well