Arg 
Parsing of command line arguments.

Arith_flags  
Arith_status 
Flags that control rational arithmetic.

Array 
Array operations.

ArrayLabels 
Array operations.

Big_int 
Operations on arbitraryprecision integers.

Bigarray 
Large, multidimensional, numerical arrays.

Buffer 
Extensible string buffers.

Callback 
Registering OCaml values with the C runtime.

CamlinternalLazy 
Runtime support for lazy values.

CamlinternalMod 
Runtime support for recursive modules.

CamlinternalOO 
Runtime support for objects and classes.

Char 
Character operations.

Complex 
Complex numbers.

Digest 
MD5 message digest.

Dynlink 
Dynamic loading of object files.

Filename 
Operations on file names.

Format 
Pretty printing.

Gc 
Memory management control and statistics; finalised values.

Genlex 
A generic lexical analyzer.

Graphics 
Machineindependent graphics primitives.

Hashtbl 
Hash tables and hash functions.

Int32 
32bit integers.

Int64 
64bit integers.

Int_misc  
Lazy 
Deferred computations.

Lexing 
The runtime library for lexers generated by
ocamllex .

List 
List operations.

ListLabels 
List operations.

Map 
Association tables over ordered types.

Marshal 
Marshaling of data structures.

MoreLabels 
Extra labeled libraries.

Nat  
Nativeint 
Processornative integers.

Num 
Operation on arbitraryprecision numbers.

Obj 
Operations on internal representations of values.

Oo 
Operations on objects

Parsing 
The runtime library for parsers generated by
ocamlyacc .

Pervasives 
The initially opened module.

Printexc 
Facilities for printing exceptions and inspecting current call stack.

Printf 
Formatted output functions.

Queue 
Firstin firstout queues.

Random 
Pseudorandom number generators (PRNG).

Ratio 
Operation on rational numbers.

Scanf 
Formatted input functions.

Set 
Sets over ordered types.

Sort 
Sorting and merging lists.

Stack 
Lastin firstout stacks.

StdLabels 
Standard labeled libraries.

Str 
Regular expressions and highlevel string processing

Stream 
Streams and parsers.

String 
String operations.

StringLabels 
String operations.

Sys 
System interface.

Unix 
Interface to the Unix system

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