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* sigc++/adaptors/tuple_visitor_visit_each.h
* sigc++/reference_wrapper.h
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Names with leading underscores are reserved in C++.
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Apart from template template parameters, which must still be class
according to the C++14 standard:
http://stackoverflow.com/a/11311432/1123654
though g++ and clang++ actually already supporting using typename
instead by implementing N4051:
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4051.html
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This reverts commit 180353986d101e367c26b3199c44c7b2e4c1e681.
Because I misread https://stackoverflow.com/questions/213121/use-class-or-typename-for-template-parameters
class is _still_ needed for template template parameters in C++14,
though g++ and clang++ seem to support it anyway.
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For consistency. As of C++14 class is not necessary even
for template template parameters. We can change those few uses back
to class if any (otherwise compliant-enough) compiler actually needs it.
See http://stackoverflow.com/a/11311432/1123654
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It seems to be remarkably similar.
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2005-05-06 Régis Duchesne <hpreg@vmware.com>
* sigc++/macros/limit_reference.h.m4 (added):
* sigc++/Makefile.am:
New class that just stores a reference, and makes sure that if the
reference derives from trackable, then the trackable reference will be
used instead of the derived reference in visit_each().
* sigc++/functors/macros/mem_fun.h.m4: Better fix for bug #169225 by
Régis Duchesne and Christian Hammond, based on the new limit_reference
class.
* sigc++/adaptors/bound_argument.h (added): New class (built upon the
new limit_reference class) that handles all 3 kinds of bound arguments:
by value, by reference, and by constant reference. References are
unwrapped in the bound_argument's constructor.
* sigc++/adaptors/macros/bind.h.m4: Fix for bug #302327 by Régis
Duchesne. Bound arguments now need to know whether they are passed by
reference or not. So bind() now builds bind_functor instances using
'reference_wrapper<Foo>' types, instead of 'Foo &' types. The
bind_functor code is modified to compensate.
* sigc++/adaptors/macros/bind_return.h.m4: Similar fix for a similar
bug (unfiled) with bound return arguments.
* sigc++/reference_wrapper.h:
* sigc++/type_traits.h:
The reference_wrapper class is only used in bound_argument.h. Put
correct but unused code under #if 0.
* sigc++/adaptors/lambda/base.h: This file needs reference_wrapper.h,
but was incorrectly relying on type_traits.h to include it.
* tests/Makefile.am:
* tests/test_virtualbase_delete.cc (deleted):
* tests/test_virtualbase_delete_ref_param.cc (deleted):
* tests/test_limit_reference.cc (added):
Replaced test_virtualbase_delete*.cc with a simpler
test_limit_reference.cc which checks for all 3 aspects of the same bug
in one file.
* tests/test_bind_ref.cc: Slots must use 'Foo &' types. We were lucky
this broken usage worked before this change. The change in
type_traits.h made this bug obvious, by preventing the code to compile.
* tests/test_bind_return.cc: After my change, bind() and bind_return()
must use 'reference_wrapper<Foo>' types.
* tests/test_custom.cc: Made this test a no-op (so it does not perturb
'make check' on released versions of the library) and made it a
template ready to be modified by hackers.
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2004-04-06 Martin Schulze <mschulze@cvs.gnome.org>
* configure.ac: Bump version number to 2.0.0.
* NEWS: Add ChangeLog summary for version 2.0.0.
* TODO, AUTHORS: Bring up to date.
* sigc++-2.0.pc.in, Makefile.am: 1.9 -> 2.0
* Added more documentation.
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2003-08-31 Martin Schulze <teebaum@cvs.gnome.org>
* sigc++/reference_wrapper.h, sigc++/type_traits.h, sigc++/Makefile.am:
New file reference_wrapper.h provides ref() to specify that adaptors/lambdas
should take a reference to the object passed into ref() instead of a copy.
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