Boost C++ Libraries: Ticket #1414: Warning suppression desirable for ios_state

Tue, 01 Apr 2008 19:57:36 GMT

Running the ios tests on VC9 with warning level 4 results in the warnings:

boost/io/ios_state.hpp(131) : warning C4512: 'boost::io::basic_ios_iostate_saver<Ch>' : assignment operator could not be generated
boost/io/ios_state.hpp(159) : warning C4512: 'boost::io::basic_ios_exception_saver<Ch>' : assignment operator could not be generated
boost/io/ios_state.hpp(183) : warning C4512: 'boost::io::basic_ios_tie_saver<Ch>' : assignment operator could not be generated
boost/io/ios_state.hpp(207) : warning C4512: 'boost::io::basic_ios_rdbuf_saver<Ch>' : assignment operator could not be generated
boost/io/ios_state.hpp(231) : warning C4512: 'boost::io::basic_ios_fill_saver<Ch>' : assignment operator could not be generated
boost/io/ios_state.hpp(256) : warning C4512: 'boost::io::basic_ios_locale_saver<Ch>' : assignment operator could not be generated
boost/io/ios_state.hpp(395) : warning C4512: 'boost::io::basic_ios_all_saver<Ch>' : assignment operator could not be generated

Some of the classes in ios_state.hpp already have private assignment operators, which avoids this warning. The attached patch adds them to the other classes, and silences the rest of the warnings.

attachment set

Tue, 01 Apr 2008 19:57:48 GMT

attachment → ios.diff

Fri, 29 Aug 2008 16:56:31 GMT

This is also an issue for Visual Studio 2005

status changed; resolution set

Vladimir Prus — Sat, 30 May 2009 05:59:13 GMT

status new → closed
resolution → fixed

(In [53425]) Add private assignment operators.

Patch from Richard Webb. This fixes #1414, where msvc complained that default assignment operator could not be generated. This can be fixed either by pragmas, or by declaring (but not defining), private assignment operator. The latter approach seems better, since it's likely to help on other compilers.

Daniel James — Wed, 06 Jan 2010 08:55:26 GMT

(In [58747]) Merge warning fix from trunk. Fixes #1414.