Break core code into modules (#41)

Split one-file implementation up to submodules

Fixes #18

Author: kaidokert

.github/workflows/rust.yml

@@ -16,3 +16,9 @@ jobs:
       run: cargo build --verbose
     - name: Run tests
       run: cargo test --verbose
+    - name: Run tests with zeroize
+      run: cargo test --verbose --features zeroize
+    - name: Run tests with use-unsafe
+      run: cargo test --verbose --features use-unsafe
+    - name: Run tests with all features
+      run: cargo test --verbose --all-features

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "fixed-bigint"
-version = "0.1.11"
+version = "0.1.12"
 authors = ["kaidokert <[email protected]>"]
 documentation = "https://docs.rs/fixed-bigint"
 edition = "2018"

README.md

@@ -25,10 +25,11 @@ _TODO list_:
  * Some test code relies on 64-bit ToPrimitive/FromPrimitive conversions, clean this up
  * Lots of test code can be written cleaner
  * Maybe implement signed version as well.
+ * Adopt `const_trait` from nightly and constify everything
 
 _Note:_ This crate is mostly written as an exercise for learning the Rust type system and understanding how well it works on microcontrollers, its fitness for any particular purpose or quality has precisely zero guarantees.
 
-If you are looking for production quality implementation with `no_std`, fixed-size bigint, suitable for crypto, please check out [crypto-bigint](https://github.com/RustCrypto/crypto-bigint) crate.
+If you are looking for production quality implementation with `no_std`, fixed-size bigint, suitable for crypto, please check out [crypto-bigint](https://github.com/RustCrypto/crypto-bigint) or [bnum](https://crates.io/crates/bnum) crate.
 
 ## Contributing