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[Bug c++/61007] New: New strict-aliasing warnings in 4.10.0
- From: "larsbj at gullik dot net" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 29 Apr 2014 20:11:45 +0000
- Subject: [Bug c++/61007] New: New strict-aliasing warnings in 4.10.0
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61007
Bug ID: 61007
Summary: New strict-aliasing warnings in 4.10.0
Product: gcc
Version: 4.10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: larsbj at gullik dot net
Created attachment 32707
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32707&action=edit
gzipped preprossed code showing the problem
In current trunk I get some new strict-aliasing warnings that I did
not get with 4.9.0.
Shown when compiling attached preprocessed code with:
(the operations.ii is from boost release 1.55, boost.filesystem)
g++ -O2 -Wall -Wno-unused -std=gnu++11 -c operations.ii
...
functional/boost/libs/filesystem/src/operations.cpp:343:40: warning:
dereferencing type-punned pointer will break strict-aliasing rules
[-Wstrict-aliasing]
return fs::directory_iterator(p)== end_dir_itr;
^
...
$ g++ --version
g++ (GCC) 4.10.0 20140424 (experimental)