swig - Man Page

• Generate a binding between C++ and Python: swig -c++ -python -o path/to/output_wrapper.cpp path/to/swig_file.i
• Generate a binding between C++ and Go: swig -go -cgo -intgosize 64 -c++ path/to/swig_file.i
• Generate a binding between C and Java: swig -java path/to/swig_file.i
• Generate a binding between C and Ruby and prefix the Ruby module with foo::bar::: swig -ruby -prefix "foo::bar::" path/to/swig_file.i

tldr.sh

swig [ options ] " file"

The swig command is used to create wrapper code to connect C and C++ code to scripting languages like Perl, Python, Tcl etc. from the definition of the interface. For detailed information on writing those interface definitions please refer to /usr/share/doc/swig-doc/Doc/Manual/index.html from the swig-doc package.

This manpage concentrates on explaining the invocation of the swig command.

Supported Target Language Options

-csharp

Generate C# wrappers

-d

Generate D wrappers

-go

Generate Go wrappers

-guile

Generate Guile wrappers

-java

Generate Java wrappers

-javascript

Generate Javascript wrappers

-lua

Generate Lua wrappers

-octave

Generate Octave wrappers

-perl5

Generate Perl 5 wrappers

-php7

Generate PHP 8 or later wrappers

-python

Generate Python wrappers

-r

Generate R (aka GNU S) wrappers

-ruby

Generate Ruby wrappers

-scilab

Generate Scilab wrappers

-tcl8

Generate Tcl 8 wrappers

-xml

Generate XML wrappers

Experimental Target Language Options

-c

Generate C wrappers

-ocaml

Generate OCaml wrappers

Deprecated Target Language Options

-mzscheme

Generate MzScheme/Racket wrappers

General Options

-addextern

Add extra extern declarations

-c++

Enable C++ processing

-co <file>

Check <file> out of the SWIG library

-copyctor

Automatically generate copy constructors wherever possible

-cpperraswarn

Treat the preprocessor #error statement as #warning (default)

-cppext <ext>

Change file extension of generated C++ files to <ext> (default is cxx)

-copyright

Display copyright notices

-debug-classes

Display information about the classes found in the interface

-debug-module <n> Display module parse tree at stages 1-4, <n> is a csv list of stages

-debug-symtabs

Display symbol tables information

-debug-symbols

Display target language symbols in the symbol tables

-debug-csymbols

Display C symbols in the symbol tables

-debug-lsymbols

Display target language layer symbols

-debug-quiet

Display less parse tree node debug info when using other -debug options

-debug-tags

Display information about the tags found in the interface

-debug-template

Display information for debugging templates

-debug-top <n>

Display entire parse tree at stages 1-4, <n> is a csv list of stages

-debug-typedef

Display information about the types and typedefs in the interface

-debug-typemap

Display typemap debugging information

-debug-tmsearch

Display typemap search debugging information

-debug-tmused

Display typemaps used debugging information

-directors

Turn on director mode for all the classes, mainly for testing

-dirprot

Turn on wrapping of protected members for director classes (default)

-D<symbol>[=<value>]

Define symbol <symbol> (for conditional compilation)

-E

Preprocess only, does not generate wrapper code

-external-runtime [file]

Export the SWIG runtime stack

-fakeversion <v> Make SWIG fake the program version number to <v>

-fcompact

Compile in compact mode

-features <list> Set global features, where <list> is a comma separated list of

features, eg -features directors,autodoc=1 If no explicit value is given to the feature, a default of 1 is used

-fastdispatch

Enable fast dispatch mode to produce faster overload dispatcher code

-Fmicrosoft

Display error/warning messages in Microsoft format

-Fstandard

Display error/warning messages in commonly used format

-fvirtual

Compile in virtual elimination mode

-help

Display help

-I

            - Don't search the current directory

-I<dir>

Look for SWIG files in directory <dir>

-ignoremissing

Ignore missing include files

-importall

Follow all #include statements as imports

-includeall

Follow all #include statements

-l<ifile>

Include SWIG library file <ifile>

-macroerrors

Report errors inside macros

-M

List all dependencies

-MD

Is equivalent to `-M -MF <file>', except `-E' is not implied

-MF <file>

Generate dependencies into <file> and continue generating wrappers

-MM

List dependencies, but omit files in SWIG library

-MMD

Like `-MD', but omit files in SWIG library

-module <name>

Set module name to <name>

-MP

Generate phony targets for all dependencies

-MT <target>

Set the target of the rule emitted by dependency generation

-nocontract

Turn off contract checking

-nocpperraswarn

Do not treat the preprocessor #error statement as #warning

-nodefaultctor

Do not generate implicit default constructors

-nodefaultdtor

Do not generate implicit default destructors

-nodirprot

Do not wrap director protected members

-noexcept

Do not wrap exception specifiers

-nofastdispatch

Disable fast dispatch mode (default)

-nopreprocess

Skip the preprocessor step

-notemplatereduce

Disable reduction of the typedefs in templates

-O

Enable the optimization options: -fastdispatch -fvirtual

-o <outfile>

Set name of C/C++ output file to <outfile>

-oh <headfile>

Set name of C++ output header file for directors to <headfile>

-outcurrentdir

Set default output dir to current dir instead of input file's path

-outdir <dir>

Set language specific files output directory to <dir>

-pcreversion

Display PCRE2 version information

-small

Compile in virtual elimination and compact mode

-std=<standard>

Set the C or C++ language <standard> for inputs

-swiglib

Report location of SWIG library and exit

-templatereduce

Reduce all the typedefs in templates

-U<symbol>

Undefine symbol <symbol>

-v

Run in verbose mode

-version

Display SWIG version number

-Wall

Remove all warning suppression, also implies -Wextra

-Wallkw

Enable keyword warnings for all the supported languages

-Werror

Treat warnings as errors

-Wextra

Adds the following additional warnings: 309,403,405,512,321,322

-w<list>

Suppress/add warning messages, eg -w401,+321 - see Warnings.html

-xmlout <file>

Write XML version of the parse tree to <file> after normal processing

Options can also be defined using the SWIG_FEATURES environment variable, for example:

$ SWIG_FEATURES="-Wall"
$ export SWIG_FEATURES
$ swig -python interface.i

is equivalent to:

$ swig -Wall -python interface.i

Arguments may also be passed in a file, separated by whitespace. For example:

$ echo "-Wall -python interface.i" > args.txt
$ swig @args.txt

Note: 'swig -<lang> -help' displays options for a specific target language.

SWIG was originally created by David Beazley. For up-to-date information about authors and contributors please check http://www.swig.org/guilty.html. This manual page was written by Torsten Landschoff <torsten@debian.org> and updated by Jitka Plesnikova <jplesnik@redhat.com> (but may be used by others).

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