The Ruby C API function 'rb_funcall' is used in various places in generated
code for invoking a Ruby method without parameters. The C function uses a
variadic parameter list for the arguments passed to Ruby, therefore in these
cases the list of variadic parameters is empty.
As an optimization Ruby may implement the 'rb_funcall' function as a macro
which however will not accept an empty list of arguments for '...' as of
C99 and C++11.
In order to prevent compiler warnings, this commit replaces all such
occurrences with a call to 'rb_funcall2' (which in its current name
'rb_funcallv' is invoked by the 'rb_funcall' macro anyway, at least for
Ruby 2.6.6).
Affects Ruby versions prior to 1.9 using std::complex wrappers if just using std::complex
as an output type. Also fix the Complex helper functions external visibility (to static by default).
Closes#52
SF Bug#1292 - Runtime fixes for Proc changes in ruby-1.9 when using STL wrappers that override the default predicate, such as:
%template(Map) std::map<swig::LANGUAGE_OBJ, swig::LANGUAGE_OBJ, swig::BinaryPredicate<> >;
Fixes li_std_functors testcases for Ruby 1.9.
Also rb_respond_to return values have changed subtely in 1.9 and return should be treated as a flag instead of checking for Qtrue, see SF Bug #1159.
Also fix li_std_map, li_std_set silently failing - rb_protect behaviour seems to have changed when an exception is thrown, so code has been changed to use rb_rescue. A call to 'rb_set_errinfo(Qnil)' could have solved this after the rb_protect call, but it is only available in 1.9+ and Ruby API changes are not easily and transparently detectable.
instead of a normal value.
Fixed container iterator typemaps to pass self
in as sequence (this makes iterator print itself ok)
Fixed typo in rubycomplex comment.
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@9790 626c5289-ae23-0410-ae9c-e8d60b6d4f22
