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Standard Library

Below is the API for the OCaml standard library. It's directly copied over from the OCaml Manual, formatted to the Reason syntax and styled accordingly. The API docs are work-in-progress; we'll be polishing these gradually!

If you're targeting JavaScript, the API docs for BuckleScript includes all of below, plus JS-specific APIs.

Index of modules


A
Arg
Parsing of command line arguments.
Array [StdLabels]
Array
Array operations.
Array1 [Bigarray]
One-dimensional arrays.
Array2 [Bigarray]
Two-dimensional arrays.
Array3 [Bigarray]
Three-dimensional arrays.
ArrayLabels
Array operations.
Ast_helper
Helpers to produce Parsetree fragments
Ast_mapper
The interface of a -ppx rewriter
Asttypes

B
Bigarray
Large, multi-dimensional, numerical arrays.
Buffer
Extensible buffers.
Bytes [StdLabels]
Bytes
Byte sequence operations.
BytesLabels
Byte sequence operations.

C
Callback
Registering OCaml values with the C runtime.
CamlinternalFormat
CamlinternalFormatBasics
CamlinternalLazy
Run-time support for lazy values.
CamlinternalMod
Run-time support for recursive modules.
CamlinternalOO
Run-time support for objects and classes.
Cf [Ast_helper]
Class fields
Char
Character operations.
Ci [Ast_helper]
Classes
Cl [Ast_helper]
Class expressions
Complex
Complex numbers.
Csig [Ast_helper]
Class signatures
Cstr [Ast_helper]
Class structures
Ctf [Ast_helper]
Class type fields
Cty [Ast_helper]
Class type expressions

D
Digest
MD5 message digest.
Docstrings
(Re)Initialise all docstring state

E
Exp [Ast_helper]
Expressions

F
Filename
Operations on file names.
Format
Pretty printing.

G
Gc
Memory management control and statistics; finalised values.
Genarray [Bigarray]
Genlex
A generic lexical analyzer.

H
Hashtbl [MoreLabels]
Hashtbl
Hash tables and hash functions.

I
Incl [Ast_helper]
Int32
32-bit integers.
Int64
64-bit integers.

L
LargeFile [Unix]
File operations on large files.
LargeFile [Pervasives]
Operations on large files.
Lazy
Deferred computations.
Lexer
Lexing
The run-time library for lexers generated by ocamllex.
List [StdLabels]
List
List operations.
ListLabels
List operations.
Location
An arbitrary value of type t; describes an empty ghost range.
Longident

M
Make [Weak]
Functor building an implementation of the weak hash table structure.
Make [Set]
Functor building an implementation of the set structure given a totally ordered type.
Make [MoreLabels.Set]
Make [MoreLabels.Map]
Make [MoreLabels.Hashtbl]
Make [Map]
Functor building an implementation of the map structure given a totally ordered type.
Make [Hashtbl]
Functor building an implementation of the hashtable structure.
MakeSeeded [MoreLabels.Hashtbl]
MakeSeeded [Hashtbl]
Functor building an implementation of the hashtable structure.
Map [MoreLabels]
Map
Association tables over ordered types.
Marshal
Marshaling of data structures.
Mb [Ast_helper]
Module bindings
Md [Ast_helper]
Module declarations
Mod [Ast_helper]
Module expressions
MoreLabels
Extra labeled libraries.
Mtd [Ast_helper]
Module type declarations
Mty [Ast_helper]
Module type expressions

N
Nativeint
Processor-native integers.
Num
Operation on arbitrary-precision numbers.

O
Obj
Operations on internal representations of values.
Oo
Operations on objects
Opn [Ast_helper]

P
Parse
Parser
Parsetree
Abstract syntax tree produced by parsing
Parsing
The run-time library for parsers generated by ocamlyacc.
Pat [Ast_helper]
Patterns
Pervasives
The initially opened module.
Pprintast
Printast
Printexc
Facilities for printing exceptions and inspecting current call stack.
Printf
Formatted output functions.

Q
Queue
First-in first-out queues.

R
Random
Pseudo-random number generators (PRNG).

S
Scanf
Formatted input functions.
Scanning [Scanf]
Set
Sets over ordered types.
Set [MoreLabels]
Sig [Ast_helper]
Signature items
Slot [Printexc]
Sort
Sorting and merging lists.
Stack
Last-in first-out stacks.
State [Random]
StdLabels
Standard labeled libraries.
Str
Regular expressions and high-level string processing
Str [Ast_helper]
Structure items
Stream
Streams and parsers.
String
String operations.
String [StdLabels]
StringLabels
String operations.
Syntaxerr
Sys
System interface.

T
Te [Ast_helper]
Type extensions
Typ [Ast_helper]
Type expressions
Type [Ast_helper]
Type declarations

U
Unix
Interface to the Unix system.

V
Val [Ast_helper]
Value declarations
Vb [Ast_helper]

W
Weak
Arrays of weak pointers and hash tables of weak pointers.