Standard Library

This directory is the sole authority for the portable public modules distributed with Nocter. Every module index.nct owns its compiler-checked public declarations and declaration doc comments. The catalog below assigns each longer observable subject to one behavior guide. A guide may span tightly coupled modules when separating their cross-operation invariants would create duplicate authorities. Declarations answer what can be called; guides explain observable behavior, failure, complexity, and invariants without repeating signatures. The package identity itself is defined by the checked root declaration.

Language constructs and target primitives are referenced from their owning specification chapters rather than redefined here. Generated contract pages show the exact checked index.nct source: only declarations with public language visibility are public API, while visible see edges and restricted declarations remain source-level module assembly and package contracts. Independent package-only modules live under std/internal and are excluded from generated navigation. The guides below cover modules whose observable behavior needs more explanation than declaration comments.

Behavior Guide Authority

Observable subject	Sole guide	Checked contracts
borrowed UTF-8 text	Borrowed Text	`std/str`
owned UTF-8 text	Owned Strings	`std/string`
growable sequences	Vectors	`std/vec`
borrowed sequences	Slices	`std/slice`
iteration and collection	Iteration	`std/iter`, `std/iter/collect`
value formatting	Formatting	`std/fmt`
byte streams and buffering	I/O	`std/io`, `std/io/buffer`
paths and filesystem operations	Filesystem	`std/path`, `std/fs`
integer text conversion	Integer Text	`std/num`
allocation and storage failure	Allocation and Failure	`std/mem`
recoverable failure payloads	Recoverable Errors	`std/error`
pointers and addresses	Pointer and Address Conversion	`std/ptr`
hashing and unordered collections	Associative Collections	`std/hash`, `std/map`, `std/set`
JSON values, parsing, and generation	JSON Values and Text	`std/json`
durations, monotonic time, wall-clock time, and UTC calendar values	Time	`std/time`
synchronous processes and process context	Synchronous Processes	`std/process`
Unicode scalars and text transforms	Unicode Text and Scalars	`std/char`, Unicode operations on `std/str` and `std/string`
native assertions	Native Assertions	`std/testing`