Finalize on feature flags vs rustc `--cfg` flags for default impl selection - Githubissues

mrhooray / crc-rs

Rust implementation of CRC(16, 32, 64) with support of various standards

Apache License 2.0

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Finalize on feature flags vs rustc `--cfg` flags for default impl selection #113

Open akhilles opened 6 months ago

akhilles commented 6 months ago

Context: https://github.com/mrhooray/crc-rs/issues/92#issuecomment-1972696261

Some advantages of --cfg flags:

Don't have to be strictly additive
Can only be set when compiling a binary (hidden to libraries)
Can throw a compile error if incompatible flags are set
Can stop supporting them without breaking semver