# V3 step 5 — Benjamin stdlib, classic form (planned)

Status: not started. Blaise RTL/StdLib equivalent.

## Scope

Semantics per `Benjamin/Actual/m2bsk-master/r10/stdlib/*.if`,
syntax classic `DEFINITION/IMPLEMENTATION` + `OPAQUE` only
(no `INTERFACE MODULE`, no operator procedures, no blueprints):

- `Strings` (Length/Assign/Extract/Concat/Compare over headers),
  `TextIO` (+ `UWriteChar/UWriteString/UWriteLn`),
  `WholeIO`, `Math` (→ libc), `Files` (over `SysIO`).
- `SysIO.ExportCStr` for the NUL-at-boundary rule.

## Acceptance (planned)

- I/O + file round-trip tests (output bytes compared, not just
  exit codes); `UWriteString` output byte-identical to source
  UTF-8 literal; suite green.

## Files (planned)

- `stdlib/*`; `compiler/tests/` I/O tests.
- This file filled in on landing.