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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.
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