SWIG (Simplified Wrapper and Interface Generator)
Tagline: SWIG is a compiler that integrates C and C++ with languages
including Perl, Python, Tcl, Ruby, PHP, Java, C#, D, Go, Lua,
Octave, R, Scheme (Guile, MzScheme/Racket), Scilab, Ocaml.
SWIG can also export its parse tree into XML.
SWIG reads annotated C/C++ header files and creates wrapper code (glue
code) in order to make the corresponding C/C++ libraries available to
the listed languages, or to extend C/C++ programs with a scripting
language.
Up-to-date SWIG related information can be found at
https://www.swig.org
A SWIG FAQ and other hints can be found on the SWIG Wiki:
https://github.com/swig/swig/wiki
License
=======
Please see the LICENSE file for details of the SWIG license. For
further insight into the license including the license of SWIG's
output code, please visit
https://www.swig.org/legal.html
Release Notes
=============
Please see the CHANGES.current file for a detailed list of bug fixes and
new features for the current release. The CHANGES file contains bug fixes
and new features for older versions. A summary of changes in each release
can be found in the RELEASENOTES file.
Documentation
=============
The Doc/Manual directory contains the most recent set of updated
documentation for this release. The documentation is available in
three different formats, each of which contains identical content.
These format are, pdf (Doc/Manual/SWIGDocumentation.pdf), single
page html (Doc/Manual/SWIGDocumentation.html) or multiple page html
(other files in Doc/Manual). Please select your chosen format and
copy/install to wherever takes your fancy.
There is some technical developer documentation available in the
Doc/Devel subdirectory. This is not necessarily up-to-date, but it
has some information on SWIG internals.
Documentation is also online at https://www.swig.org/doc.html.
Backwards Compatibility
=======================
The developers strive their best to preserve backwards compatibility
between releases, but this is not always possible as the overriding
aim is to provide the best wrapping experience. Where backwards
compatibility is known to be broken, it is clearly marked as an
incompatibility in the CHANGES and CHANGES.current files.
See the documentation for details of the SWIG_VERSION preprocessor
symbol if you have backward compatibility issues and need to use more
than one version of SWIG.
Installation
============
Please read the Doc/Manual/Preface.html#Preface_installation for
full installation instructions for Windows, Unix and Mac OS X
using the release tarball/zip file. The INSTALL file has generic
build and installation instructions for Unix users.
Users wishing to build and install code from Github should
visit https://swig.org/svn.html to obtain the more detailed
instructions required for building code obtained from Github - extra
steps are required compared to building from the release tarball.
Testing
=======
The typical 'make -k check' can be performed on Unix operating systems.
Please read Doc/Manual/Preface.html#Preface_testing for details.
Examples
========
The Examples directory contains a variety of examples of using SWIG
and it has some browsable documentation. Simply point your browser to
the file "Example/index.html".
The Examples directory also includes Visual C++ project 6 (.dsp) files for
building some of the examples on Windows. Later versions of Visual Studio
will convert these old style project files into a current solution file.
Known Issues
============
There are minor known bugs, details of which are in the bug tracker, see
https://www.swig.org/bugs.html.
Troubleshooting
===============
In order to operate correctly, SWIG relies upon a set of library
files. If after building SWIG, you get error messages like this,
$ swig foo.i
:1. Unable to find 'swig.swg'
:3. Unable to find 'tcl8.swg'
it means that SWIG has either been incorrectly configured or
installed. To fix this:
1. Make sure you remembered to do a 'make install' and that
the installation actually worked. Make sure you have
write permission on the install directory.
2. If that doesn't work, type 'swig -swiglib' to find out
where SWIG thinks its library is located.
3. If the location is not where you expect, perhaps
you supplied a bad option to configure. Use
./configure --prefix=pathname to set the SWIG install
location. Also, make sure you don't include a shell
escape character such as ~ when you specify the path.
4. The SWIG library can be changed by setting the SWIG_LIB
environment variable. However, you really shouldn't
have to do this.
If you are having other troubles, you might look at the SWIG Wiki at
https://github.com/swig/swig/wiki.
Participate!
============
Please report any errors and submit patches (if possible)! We only
have access to a limited variety of hardware (Linux, Solaris, OS-X,
and Windows). All contributions help.
If you would like to join the SWIG development team or contribute a
language module to the distribution, please contact the swig-devel
mailing list, details at https://www.swig.org/mail.html.
-- The SWIG Maintainers
Below are the changes for the current release.
See the CHANGES file for changes in older releases.
See the RELEASENOTES file for a summary of changes in each release.
Issue # numbers mentioned below can be found on Github. For more details, add
the issue number to the end of the URL: https://github.com/swig/swig/issues/
Version 4.2.1 (24 Feb 2024)
===========================
2024-02-23: wsfulton
#2814 Correctly ignore duplicate template instantiation (when the
duplicate contains typedef'd template parameters).
2024-02-22: erezgeva
[Ruby, Octave, R] #2284 Fix segfault shrinking STL containers.
2024-02-22: simark
Fix -Wundef warning about testing the value of __cplusplus when
compiling SWIG-generated C code. Warning introduced by a change in
SWIG 4.2.0.
2024-02-21: olly
#2808 [PHP] Fix memory leak when getting or setting a PHP
attribute which wraps a C++ member variable. Bug introduced in
SWIG 4.1.0.
2024-02-18: wsfulton
#2745 Fix for wrapping STL containers that are static member variables
or global variables (most scripting languages). Previously a copy of the
STL container was made into a target language container when reading the
variable. Changes, such as adjusting an element or adding/erasing
elements, were made to the copy of the container rather the actual
underlying C++ container. Also applies to const reference STL static
members.
If you really need the old behaviour, add in the typemap that used
to provide it. For example, for std::list< int > and
const std::list< int >&, use:
%typemap(varout,noblock=1,fragment="SWIG_" "Traits" "_" {std::list< int >})
std::list< int >, const std::list< int >& {
$result = swig::from(static_cast< std::list< int > >($1));
}
*** POTENTIAL INCOMPATIBILITY ***
2024-02-15: olly
Improve type deduction for enum values in expressions.
2024-02-15: rlaboiss
#2799 [Octave] Add support for Octave 9.0; fix warnings about use
of deprecated Octave APIs with Octave 7 and later.
2024-02-14: olly
SWIG now warns and ignores if %constant is used with an implicit
type which SWIG can't deduce.
2024-02-13: olly
Fix type deduction for certain cases involving C-style casts, or
which are syntactically like a C-style cast applied to an unary
operator, such as: (7)*6
2024-02-13: olly
#2796 Fix handling of enum initialised by expression including a
cast to a typedef-ed type. Regression introduced in 4.2.0.
2024-02-09: wsfulton
#2794 Fix SwigType_isvariadic assertion to add support for variadic
templated functions in a template.
2024-02-08: wsfulton
#2761 [Tcl] Fix assert in SWIG_Tcl_ConvertPtrFromString().
2024-02-03: wsfulton
#1897 [C#, Java] Fix crash handling enums with same name in different
namespaces.
2024-02-01: wsfulton
#2781 Correctly report line number warnings/errors for base classes that
are templates.
2024-01-31: olly
Fix assertion failure and segfault trying to use %constant to
deduce the type of a "float _Complex" constant.
2024-01-31: jim-easterbrook
#2771 [Python] builtin fixes to handle NULL values passed to slots using
functype: ssizeobjargproc and ternaryfunc.
2024-01-31: olly
[Java] #2766 Fix segfault trying to wrap a constant whose type is unknown
to SWIG with "%javaconst(1);" enabled.
2024-01-31: wsfulton
#2768 Fix seg fault handling upcasting when using %shared_ptr on some
templates.
2024-01-31: olly
#2783 Fix incorrectly deduced type for function call. Regression
introduced in 4.2.0.
2024-01-27: wsfulton
[Python] Fix compilation error when wrapping two or more classes that
have the same friend operator overload when the classes are in a namespace.
2024-01-15: wsfulton
https://sourceforge.net/p/swig/bugs/960/
https://sourceforge.net/p/swig/bugs/807/
Fix so that friend operators within a namespace can be correctly ignored
or renamed.
2024-01-15: wsfulton
Wrap friend functions that are defined or declared within a namespace.
Previously unqualified friend definitions/declarations in a namespace were
ignored.
The visibility of unqualified friend functions in C++ is somewhat quirky
and the documentation has been enhanced to aid wrapping of friends.
2024-01-12: wsfulton
#2749 Fix seg fault handling friend constructor/destructor declarations.
2024-01-12: olly
[Ruby, Tcl] #2751 Fix -external-runtime output to define
SWIG_snprintf (bug introduced in 4.2.0).
2024-01-12: olly
Improve preprocessor warning for use of an undefined function-like
macro. SWIG now warns:
Warning 202: Could not evaluate expression 'MY_VERSION_AT_LEAST(1,2,3)'
Warning 202: Use of undefined function-like macro
instead of:
Warning 202: Could not evaluate expression 'MY_VERSION_AT_LEAST(1,2,3)'
Warning 202: Syntax error: expected operator
2024-01-11: PaulObermeier
[Tcl] Improve support for Tcl 9.0. All examples and tests now pass
with Tcl 9.0.b1.
2024-01-06: wsfulton
[Python] #2744 Regression fix - add in missing SwigPyIterator_T fragment for
SwigPyIteratorClosed_T when using %import on an instantiated std::map.
This file contains a brief overview of the changes made in each release.
A detailed description of changes are available in the CHANGES.current
and CHANGES files.
Release Notes
=============
Detailed release notes are available with the release and are also
published on the SWIG web site at https://swig.org/release.html.
SWIG-4.2.1 summary:
- Tcl 9.0 support.
- Octave 9.0 support.
- Improvements wrapping friend functions.
- Variadic templated functions within a template support.
- Type deduction enhancements.
- Stability and regression fixes.
SWIG-4.2.0 summary:
- Various template wrapping improvements: template template parameters,
variadic templates, partially specialized templates, const template
parameters and improved error checking instantiating templates.
- Improved decltype() support for expressions.
- C++14 auto without trailing return type and C++11 auto variables.
- Numerous C++ using declarations improvements.
- Numerous fixes for constructors, destructors and assignment operators:
implicit, default and deleted and related non-assignable variable
wrappers.
- STL: std::array and std::map improvements, std::string_view support
added.
- Various C preprocessor improvements.
- Various issues fixed to do with architecture specific long type.
- Various Doxygen improvements.
- D1/Tango support removed. D2/Phobos is now the supported D version
and SWIG now generates code which works with recent D2 releases.
- New Javascript generator targeting Node.js binary stable ABI Node-API.
- Octave 8.1 support added.
- PHP7 support removed, PHP8 is now the supported PHP version.
- Python STL container wrappers now use the Python Iterator Protocol.
- Python stable ABI support added.
- Python 3.12 support added.
- Ruby 3.2 and 3.3 support.
- Scilab 2023.* support added.
- Various minor enhancements for C#, Go, Guile, Javascript, Lua, Ocaml,
Perl, PHP, R, Racket, Ruby, Scilab and Tcl.
- A number of deprecated features have been removed.
SWIG-4.1.1 summary:
- Couple of stability fixes.
- Stability fix in ccache-swig when calculating hashes of inputs.
- Some template handling improvements.
- R - minor fixes plus deprecation for rtypecheck typemaps being optional.
SWIG-4.1.0 summary:
- Add Javascript Node v12-v18 support, remove support prior to v6.
- Octave 6.0 to 6.4 support added.
- Add PHP 8 support.
- PHP wrapping is now done entirely via PHP's C API - no more .php wrapper.
- Perl 5.8.0 is now the oldest version SWIG supports.
- Python 3.3 is now the oldest Python 3 version SWIG supports.
- Python 3.9-3.11 support added.
- Various memory leak fixes in Python generated code.
- Scilab 5.5-6.1 support improved.
- Many improvements for each and every target language.
- Various preprocessor expression handling improvements.
- Improved C99, C++11, C++14, C++17 support. Start adding C++20 standard.
- Make SWIG much more move semantics friendly.
- Add C++ std::unique_ptr support.
- Few minor C++ template handling improvements.
- Various C++ using declaration fixes.
- Few fixes for handling Doxygen comments.
- GitHub Actions is now used instead of Travis CI for continuous integration.
- Add building SWIG using CMake as a secondary build system.
- Update optional SWIG build dependency for regex support from PCRE to PCRE2.
SWIG-4.0.2 summary:
- A few fixes around doxygen comment handling.
- Ruby 2.7 support added.
- Various minor improvements to C#, D, Java, OCaml, Octave, Python,
R, Ruby.
- Considerable performance improvement running SWIG on large
interface files.
SWIG-4.0.1 summary:
- SWIG now cleans up on error by removing all generated files.
- Add Python 3.8 support.
- Python Sphinx compatibility added for Doxygen comments.
- Some minor regressions introduced in 4.0.0 were fixed.
- Fix some C++17 compatibility problems in Python and Ruby generated
code.
- Minor improvements/fixes for C#, Java, Javascript, Lua, MzScheme,
Ocaml, Octave and Python.
SWIG-4.0.0 summary:
- Support for Doxygen documentation comments which are parsed and
converted into JavaDoc or PyDoc comments.
- STL wrappers improved for C#, Java and Ruby.
- C++11 STL containers added for Java, Python and Ruby.
- Improved support for parsing C++11 and C++14 code.
- Various fixes for shared_ptr.
- Various C preprocessor corner case fixes.
- Corner case fixes for member function pointers.
- Python module overhaul by simplifying the generated code and turning
most optimizations on by default.
- %template improvements wrt scoping to align with C++ explicit
template instantiations.
- Added support for a command-line options file (sometimes called a
response file).
- Numerous enhancements and fixes for all supported target languages.
- SWIG now classifies the status of target languages into either
'Experimental' or 'Supported' to indicate the expected maturity
level.
- Support for CFFI, Allegrocl, Chicken, CLISP, S-EXP, UFFI, Pike,
Modula3 has been removed.
- Octave 4.4-5.1 support added.
- PHP5 support removed, PHP7 is now the supported PHP version.
- Minimum Python version required is now 2.7, 3.2-3.7 are the only
other versions supported.
- Added support for Javascript NodeJS versions 2-10.
- OCaml support is much improved and updated, minimum OCaml version
required is now 3.12.0.
SWIG-3.0.12 summary:
- Add support for Octave-4.2.
- Enhance %extend to support template functions.
- Language specific enhancements and fixes for C#, D, Guile, Java, PHP7.
SWIG-3.0.11 summary:
- PHP 7 support added.
- C++11 alias templates and type aliasing support added.
- Minor fixes and enhancements for C# Go Guile Java Javascript Octave
PHP Python R Ruby Scilab XML.
SWIG-3.0.10 summary:
- Regression fixes for smart pointers and importing Python modules.
SWIG-3.0.9 summary:
- Add support for Python's implicit namespace packages.
- Fixes to support Go 1.6.
- C++11 std::array support added for Java.
- Improved C++ multiple inheritance support for Java/C# wrappers.
- Various other minor fixes and improvements for C#, D, Go, Java,
Javascript, Lua, Python, R, Ruby, Scilab.
SWIG-3.0.8 summary:
- pdf documentation enhancements.
- Various Python 3.5 issues fixed.
- std::array support added for Ruby and Python.
- shared_ptr support added for Ruby.
- Minor improvements for CFFI, Go, Java, Perl, Python, Ruby.
SWIG-3.0.7 summary:
- Add support for Octave-4.0.0.
- Remove potential Android security exploit in generated Java classes.
- Minor new features and bug fixes.
SWIG-3.0.6 summary:
- Stability and regression fixes.
- Fixed parsing of C++ corner cases.
- Language improvements and bug fixes for C#, Go, Java, Lua, Python, R.
SWIG-3.0.5 summary:
- Added support for Scilab.
- Important Python regression fix when wrapping C++ default arguments.
- Minor improvements for C#, Go, Octave, PHP and Python.
SWIG-3.0.4 summary:
- Python regression fix when wrapping C++ default arguments.
- Improved error messages.
SWIG-3.0.3 summary:
- Add support for C++11 strongly typed enumerations.
- Numerous bug fixes and minor enhancements for C#, D, Go, Java,
Javascript, PHP, Perl and Python wrappers.
SWIG-3.0.2 summary:
- Bug fix during install and a couple of other minor changes.
SWIG-3.0.1 summary:
- Javascript module added. This supports JavascriptCore (Safari/Webkit),
v8 (Chromium) and node.js currently.
- A few notable regressions introduced in 3.0.0 have been fixed - in
Lua, nested classes and parsing of operator <<.
- The usual round of bug fixes and minor improvements for:
C#, GCJ, Go, Java, Lua, PHP and Python.
SWIG-3.0.0 summary:
- This is a major new release focusing primarily on C++ improvements.
- C++11 support added. Please see documentation for details of supported
features: https://www.swig.org/Doc3.0/CPlusPlus11.html
- Nested class support added. This has been taken full advantage of in
Java and C#. Other languages can use the nested classes, but require
further work for a more natural integration into the target language.
We urge folk knowledgeable in the other target languages to step
forward and help with this effort.
- Lua: improved metatables and support for %nspace.
- Go 1.3 support added.
- Python import improvements including relative imports.
- Python 3.3 support completed.
- Perl director support added.
- C# .NET 2 support is now the minimum. Generated using statements are
replaced by fully qualified names.
- Bug fixes and improvements to the following languages:
C#, Go, Guile, Java, Lua, Perl, PHP, Python, Octave, R, Ruby, Tcl
- Various other bug fixes and improvements affecting all languages.
- Note that this release contains some backwards incompatible changes
in some languages.
- Full detailed release notes are in the changes file.
SWIG-2.0.12 summary:
- This is a maintenance release backporting some fixes from the pending
3.0.0 release.
- Octave 3.8 support added.
- C++11 support for new versions of erase/insert in the STL containers.
- Compilation fixes on some systems for the generated Lua, PHP, Python
and R wrappers.
SWIG-2.0.11 summary:
- Minor bug fixes and enhancements mostly in Python, but also
C#, Lua, Ocaml, Octave, Perl, PHP, Python, R, Ruby, Tcl.
SWIG-2.0.10 summary:
- Ruby 1.9 support is now complete.
- Add support for Guile 2.0 and Guile 1.6 support (GH interface) has
been dropped.
- Various small language neutral improvements and fixes.
- Various bug fixes and minor improvements specific to C#, CFFI, D,
Java, Octave, PHP, Python,
- Minor bug fix in ccache-swig.
- Development has moved to Github with Travis continuous integration
testing - patches using https://github.com/swig/swig are welcome.
SWIG-2.0.9 summary:
- Improved typemap matching.
- Ruby 1.9 support is much improved.
- Various bug fixes and minor improvements in C#, CFFI, Go, Java,
Modula3, Octave, Perl, Python, R, Ruby, Tcl and in ccache-swig.
SWIG-2.0.8 summary:
- Fix a couple of regressions introduced in 2.0.5 and 2.0.7.
- Improved using declarations and using directives support.
- Minor fixes/enhancements for C#, Java, Octave, Perl and Python.
SWIG-2.0.7 summary:
- Important regression fixes since 2.0.5 for typemaps in general and
in Python.
- Fixes and enhancements for Go, Java, Octave and PHP.
SWIG-2.0.6 summary:
- Regression fix for Python STL wrappers on some systems.
SWIG-2.0.5 summary:
- Official Android support added including documentation and examples.
- Improvements involving templates:
1) Various fixes with templates and typedef types.
2) Some template lookup problems fixed.
3) Templated type fixes to use correct typemaps.
- Autodoc documentation generation improvements.
- Python STL container wrappers improvements including addition of
stepped slicing.
- Approximately 70 fixes and minor enhancements for the following
target languages: AllegroCL, C#, D, Go, Java, Lua, Ocaml, Octave,
Perl, PHP, Python, R, Ruby, Tcl, Xml.
SWIG-2.0.4 summary:
- This is mainly a Python oriented release including support for Python
built-in types for superior performance with the new -builtin option.
The -builtin option is especially suitable for performance-critical
libraries and applications that call wrapped methods repeatedly.
See the python-specific chapter of the SWIG manual for more info.
- Python 3.2 support has also been added and various Python bugs have
been fixed.
- Octave 3.4 support has also been added.
- There are also the usual minor generic improvements, as well as bug
fixes and enhancements for D, Guile, Lua, Octave, Perl and Tcl.
SWIG-2.0.3 summary:
- A bug fix release including a couple of fixes for regressions in the
2.0 series.
SWIG-2.0.2 summary:
- Support for the D language has been added.
- Various bug fixes and minor enhancements.
- Bug fixes particular to the Clisp, C#, Go, MzScheme, Ocaml, PHP, R,
Ruby target languages.
SWIG-2.0.1 summary:
- Support for the Go language has been added.
- New regular expression (regex) encoder for renaming symbols based on
the Perl Compatible Regular Expressions (PCRE) library.
- Numerous fixes in reporting file and line numbers in error and warning
messages.
- Various bug fixes and improvements in the C#, Lua, Perl, PHP, Ruby
and Python language modules.
SWIG-2.0.0 summary:
- License changes, see LICENSE file and https://www.swig.org/legal.html.
- Much better nested class/struct support.
- Much improved template partial specialization and explicit
specialization handling.
- Namespace support improved with the 'nspace' feature where namespaces
can be automatically translated into Java packages or C# namespaces.
- Improved typemap and symbol table debugging.
- Numerous subtle typemap matching rule changes when using the default
(SWIGTYPE) type. These now work much like C++ class template partial
specialization matching.
- Other small enhancements for typemaps. Typemap fragments are also now
official and documented.
- Warning and error display refinements.
- Wrapping of shared_ptr is improved and documented now.
- Numerous C++ unary scope operator (::) fixes.
- Better support for boolean expressions.
- Various bug fixes and improvements in the Allegrocl, C#, Java, Lua,
Octave, PHP, Python, R, Ruby and XML modules.
SWIG-1.3.40 summary:
- SWIG now supports directors for PHP.
- PHP support improved in general.
- Octave 3.2 support added.
- Various bug fixes/enhancements for Allegrocl, C#, Java, Octave, Perl,
Python, Ruby and Tcl.
- Other generic fixes and minor new features.
SWIG-1.3.39 summary:
- Some new small feature enhancements.
- Improved C# std::vector wrappers.
- Bug fixes: mainly Python, but also Perl, MzScheme, CFFI, Allegrocl
and Ruby
SWIG-1.3.38 summary:
- Output directory regression fix and other minor bug fixes
SWIG-1.3.37 summary:
- Python 3 support added
- SWIG now ships with a version of ccache that can be used with SWIG.
This enables the files generated by SWIG to be cached so that repeated
use of SWIG on unchanged input files speeds up builds quite considerably.
- PHP 4 support removed and PHP support improved in general
- Improved C# array support
- Numerous Allegro CL improvements
- Bug fixes/enhancements for Python, PHP, Java, C#, Chicken, Allegro CL,
CFFI, Ruby, Tcl, Perl, R, Lua.
- Other minor generic bug fixes and enhancements
SWIG-1.3.36 summary:
- Enhancement to directors to wrap all protected members
- Optimisation feature for objects returned by value
- A few bugs fixes in the PHP, Java, Ruby, R, C#, Python, Lua and
Perl modules
- Other minor generic bug fixes
SWIG-1.3.35 summary:
- Octave language module added
- Bug fixes in Python, Lua, Java, C#, Perl modules
- A few other generic bugs and runtime assertions fixed
SWIG-1.3.34 summary:
- shared_ptr support for Python
- Support for latest R - version 2.6
- Various minor improvements/bug fixes for R, Lua, Python, Java, C#
- A few other generic bug fixes, mainly for templates and using statements
SWIG-1.3.33 summary:
- Fix regression for Perl where C++ wrappers would not compile
- Fix regression parsing macros
SWIG-1.3.32 summary:
- shared_ptr support for Java and C#
- Enhanced STL support for Ruby
- Windows support for R
- Fixed long-standing memory leak in PHP Module
- Numerous fixes and minor enhancements for Allegrocl, C#, cffi, Chicken, Guile,
Java, Lua, Ocaml, Perl, PHP, Python, Ruby, Tcl.
- Improved warning support
SWIG-1.3.31 summary:
- Python modern classes regression fix
SWIG-1.3.30 summary:
- Python-2.5 support
- New language module: R
- Director support added for C#
- Numerous director fixes and improvements
- Improved mingw/msys support
- Better constants support in Guile and chicken modules
- Support for generating PHP5 class wrappers
- Important Java premature garbage collection fix
- Minor improvements/fixes in cffi, php, allegrocl, perl, chicken, lua, ruby,
ocaml, python, java, c# and guile language modules
- Many many other bug fixes
SWIG-1.3.29 summary:
- Numerous important bug fixes
- Few minor new features
- Some performance improvements in generated code for Python
SWIG-1.3.28 summary:
- More powerful renaming (%rename) capability.
- More user friendly warning handling.
- Add finer control for default constructors and destructors. We discourage
the use of the 'nodefault' option, which disables both constructors and
destructors, leading to possible memory leaks. Use instead 'nodefaultctor'
and/or 'nodefaultdtor'.
- Automatic copy constructor wrapper generation via the 'copyctor' option/feature.
- Better handling of Windows extensions and types.
- Better runtime error reporting.
- Add the %catches directive to catch and dispatch exceptions.
- Add the %naturalvar directive for more 'natural' variable wrapping.
- Better default handling of std::string variables using the %naturalvar directive.
- Add the %allowexcept and %exceptionvar directives to handle exceptions when
accessing a variable.
- Add the %delobject directive to mark methods that act like destructors.
- Add the -fastdispatch option to enable smaller and faster overload dispatch
mechanism.
- Template support for %rename, %feature and %typemap improved.
- Add/doc more debug options, such as -dump_module, -debug_typemaps, etc.
- Unified typemap library (UTL) potentially providing core typemaps for all
scripting languages based on the recently evolving Python typemaps.
- New language module: Common Lisp with CFFI.
- Python, Ruby, Perl and Tcl use the new UTL, many old reported and hidden
errors with typemaps are now fixed.
- Initial Java support for languages using the UTL via GCJ, you can now use
Java libraries in your favorite script language using gcj + swig.
- Tcl support for std::wstring.
- PHP4 module update, many error fixes and actively maintained again.
- Allegrocl support for C++, also enhanced C support.
- Ruby support for bang methods.
- Ruby support for user classes as native exceptions.
- Perl improved dispatching in overloaded functions via the new cast and rank
mechanism.
- Perl improved backward compatibility, 5.004 and later tested and working.
- Python improved backward compatibility, 1.5.2 and later tested and working.
- Python can use the same cast/rank mechanism via the -castmode option.
- Python implicit conversion mechanism similar to C++, via the %implicitconv
directive (replaces and improves the implicit.i library).
- Python threading support added.
- Python STL support improved, iterators are supported and STL containers can
use now the native PyObject type.
- Python many performance options and improvements, try the -O option to test
all of them. Python runtime benchmarks show up to 20 times better performance
compared to 1.3.27 and older versions.
- Python support for 'multi-inheritance' on the python side.
- Python simplified proxy classes, now swig doesn't need to generate the
additional 'ClassPtr' classes.
- Python extended support for smart pointers.
- Python better support for static member variables.
- Python backward compatibility improved, many projects that used to work
only with swig-1.3.21 to swig-1.3.24 are working again with swig-1.3.28
- Python test-suite is now 'valgrinded' before release, and swig also
reports memory leaks due to missing destructors.
- Minor bug fixes and improvements to the Lua, Ruby, Java, C#, Python, Guile,
Chicken, Tcl and Perl modules.
SWIG-1.3.27 summary:
- Fix bug in anonymous typedef structures which was leading to strange behaviour
SWIG-1.3.26 summary:
- New language modules: Lua, CLISP and Common Lisp with UFFI.
- Big overhaul to the PHP module.
- Change to the way 'extern' is handled.
- Minor bug fixes specific to C#, Java, Modula3, Ocaml, Allegro CL,
XML, Lisp s-expressions, Tcl, Ruby and Python modules.
- Other minor improvements and bug fixes.
SWIG-1.3.25 summary:
- Improved runtime type system. Speed of module loading improved in
modules with lots of types. SWIG_RUNTIME_VERSION has been increased
from 1 to 2, but the API is exactly the same; only internal changes
were made.
- The languages that use the runtime type system now support external
access to the runtime type system.
- Various improvements with typemaps and template handling.
- Fewer warnings in generated code.
- Improved colour documentation.
- Many C# module improvements (exception handling, prevention of early
garbage collection, C# attributes support added, more flexible type
marshalling/asymmetric types.)
- Minor improvements and bug fixes specific to the C#, Java, TCL, Guile,
Chicken, MzScheme, Perl, Php, Python, Ruby and Ocaml modules).
- Various other bug fixes and memory leak fixes.
SWIG-1.3.24 summary:
- Improved enum handling
- More runtime library options
- More bugs fixes for templates and template default arguments, directors
and other areas.
- Better smart pointer support, including data members, static members
and %extend.
SWIG-1.3.23 summary:
- Improved support for callbacks
- Python docstring support and better error handling
- C++ default argument support for Java and C# added.
- Improved c++ default argument support for the scripting languages plus
option to use original (compact) default arguments.
- %feature and %ignore/%rename bug fixes and mods - they might need default
arguments specified to maintain compatible behaviour when using the new
default arguments wrapping.
- Runtime library changes: Runtime code can now exist in more than one module
and so need not be compiled into just one module
- Further improved support for templates and namespaces
- Overloaded templated function support added
- More powerful default typemaps (mixed default typemaps)
- Some important %extend and director code bug fixes
- Guile now defaults to using SCM API. The old interface can be obtained by
the -gh option.
- Various minor improvements and bug fixes for C#, Chicken, Guile, Java,
MzScheme, Perl, Python and Ruby
- Improved dependencies generation for constructing Makefiles.
SWIG-1.3.22 summary:
- Improved exception handling and translation of C errors or C++
exceptions into target language exceptions.
- Improved enum support, mapping to built-in Java 1.5 enums and C#
enums or the typesafe enum pattern for these two languages.
- Python - much better STL support and support for std::wstring,
wchar_t and FILE *.
- Initial support for Modula3 and Allegro CL.
- 64 bit TCL support.
- Java and C#'s proxy classes are now nearly 100% generated from
typemaps and/or features for finer control on the generated code.
- SWIG runtime library support deprecation.
- Improved documentation. SWIG now additionally provides documentation
in the form of a single HTML page as well as a pdf document.
- Enhanced C++ friend declaration support.
- Better support for reference counted classes.
- Various %fragment improvements.
- RPM fixes.
- Various minor improvements and bug fixes for C#, Chicken, Guile, Java,
MzScheme, Perl, Php, Python, Ruby and XML.