Expand description
Error codes, mirroring argon2_error_codes from phc-winner-argon2/include/argon2.h.
Every variant carries the exact numeric value the C reference uses, so
differential tests can compare Error::as_c_code() against the int
returned by argon2_ctx / argon2_hash / argon2_verify.
ARGON2_OK (0) is deliberately absent: success is Ok(()) in Rust.
Enumsยง
- Error
- An Argon2 error.