Lithium

Lightweight exceptions.

Lithium provides a custom exception mechanism as an alternative to Rust panics. Compared to Rust panics, this mechanism is allocation-free, avoids indirections and RTTI, and hence faster, if less applicable.

Under the default configuration, Lithium is more than 2x faster Rust panics on common Result-like usecases. See the benchmark.

See documentation for usage and installation instructions.