View Issue Details

IDProjectCategoryView StatusLast Update
0024875Open CASCADEOCCT:Codingpublic2017-01-23 12:03
Reporterabv Assigned Tobugmaster  
PrioritynormalSeverityminor 
Status closedResolutionfixed 
Product Version6.7.1 
Target Version7.0.0Fixed in Version7.0.0 
Summary0024875: Coding rules - eliminate GCC warning -Wstrict-aliasing in TKOpenGl
DescriptionGCC reports the following warnings:
../../../../inc/NCollection_Vec3.hxx: In member function ‘virtual void OpenGl_Flipper::Render(const Handle_OpenGl_Workspace&) const’:
../../../../inc/NCollection_Vec3.hxx:90: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../inc/NCollection_Vec3.hxx:96: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../inc/NCollection_Vec3.hxx:102: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../src/OpenGl/OpenGl_Flipper.cxx:155: note: initialized from here
../../../../inc/NCollection_Vec3.hxx:90: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../inc/NCollection_Vec3.hxx:96: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../inc/NCollection_Vec3.hxx:102: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../src/OpenGl/OpenGl_Flipper.cxx:156: note: initialized from here
../../../../inc/NCollection_Vec3.hxx:90: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../inc/NCollection_Vec3.hxx:96: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../inc/NCollection_Vec3.hxx:102: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../src/OpenGl/OpenGl_Flipper.cxx:161: note: initialized from here
../../../../inc/NCollection_Vec3.hxx:90: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../inc/NCollection_Vec3.hxx:96: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../inc/NCollection_Vec3.hxx:102: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../src/OpenGl/OpenGl_Flipper.cxx:162: note: initialized from here
../../../../inc/NCollection_Vec3.hxx:90: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../inc/NCollection_Vec3.hxx:96: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../inc/NCollection_Vec3.hxx:102: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../src/OpenGl/OpenGl_Flipper.cxx:167: note: initialized from here
../../../../inc/NCollection_Vec3.hxx:90: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../inc/NCollection_Vec3.hxx:96: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../inc/NCollection_Vec3.hxx:102: warning: dereferencing pointer ‘<anonymous>’ does break strict-aliasing rules
../../../../src/OpenGl/OpenGl_Flipper.cxx:168: note: initialized from here


gcc 4.9.2 reports only the following warning:
OpenGl_SceneGeometry.cxx:172, GNU C Compiler 4 (gcc), Priority: Normal
dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
Steps To ReproduceN/A
TagsNo tags attached.
Test case numberNot needed

Relationships

related to 0024546 closedabv Open CASCADE GCC compiler warnings in OpenGl 

Activities

kgv

2015-10-15 21:09

developer   ~0046814

These warnings are not generated on current master using gcc4.9.2 within -O2, -O3, -Wall and even -Wextra options and do not present in log #0026236.

kgv

2015-10-16 09:05

developer   ~0046822

Dear bugmaster,

please close the issue as non-reproducible.

git

2015-10-16 09:39

administrator   ~0046823

Branch CR24875 has been created by kgv.

SHA-1: 55060333d38a3d17551940015ed98c2c5a70f1f2


Detailed log of new commits:

Author: kgv
Date: Fri Oct 16 09:39:00 2015 +0300

    0024875: Coding rules - eliminate GCC warning -Wstrict-aliasing in TKOpenGl

kgv

2015-10-16 09:39

developer   ~0046824

Please check compilation of the patch in branch CR24875.

git

2015-10-16 16:58

administrator   ~0047107

Branch CR24875 has been updated forcibly by apv.

SHA-1: 046f9e20091a87e7cd26baaaa6107d45a90c6021

apv

2015-10-16 16:59

tester   ~0047108

Branch CR24875 has been rebased on the current master

apv

2015-10-20 14:52

tester   ~0047222

Dear BugMaster,

Branch CR24875 from occt git-repository (and master from products git-repository) was compiled on Linux, MacOS and Windows platforms and tested.
SHA-1: 046f9e20091a87e7cd26baaaa6107d45a90c6021

Number of compiler warnings:
occt component:
   Linux: 7 (8 on master)
   Windows: 0 (0 on master)
products component:
   Linux: 39 (39 on master)
   Windows: 0 (0 on master)

Regressions/Differences:
Not detected

Testing cases:
Not needed

Testing on Linux:
Total MEMORY difference: 92092164 / 92273976 [-0.20%]
Total CPU difference: 19655.599999999806 / 19657.97999999973 [-0.01%]

Testing on Windows:
Total MEMORY difference: 58068568 / 58086183 [-0.03%]
Total CPU difference: 18695.39384149913 / 18302.583323498948 [+2.15%]

git

2016-04-17 14:42

administrator   ~0053214

Branch CR24875 has been deleted by kgv.

SHA-1: 046f9e20091a87e7cd26baaaa6107d45a90c6021

Related Changesets

occt: master fe30607a

2015-10-16 06:39:00

kgv


Committer: bugmaster Details Diff
0024875: Coding rules - eliminate GCC warning -Wstrict-aliasing in TKOpenGl Affected Issues
0024875
mod - src/OpenGl/OpenGl_SceneGeometry.cxx Diff File

Issue History

Date Modified Username Field Change
2014-04-28 15:41 abv New Issue
2014-04-28 15:41 abv Assigned To => kgv
2014-04-28 15:49 abv Relationship added related to 0024546
2014-10-29 13:44 abv Target Version 6.8.0 => 7.1.0
2015-10-15 21:09 kgv Note Added: 0046814
2015-10-15 21:09 kgv Assigned To kgv => abv
2015-10-15 21:09 kgv Status new => feedback
2015-10-15 21:09 kgv Target Version 7.1.0 => 7.0.0
2015-10-16 09:05 kgv Note Added: 0046822
2015-10-16 09:05 kgv Assigned To abv => bugmaster
2015-10-16 09:05 kgv Resolution open => unable to reproduce
2015-10-16 09:33 kgv Assigned To bugmaster => kgv
2015-10-16 09:33 kgv Status feedback => assigned
2015-10-16 09:38 kgv Summary GCC compiler warnings on breakage of C strict aliasing rules in OpenGl => Coding rules - eliminate GCC warning -Wstrict-aliasing in TKOpenGl
2015-10-16 09:38 kgv Description Updated
2015-10-16 09:38 kgv Steps to Reproduce Updated
2015-10-16 09:39 git Note Added: 0046823
2015-10-16 09:39 kgv Note Added: 0046824
2015-10-16 09:39 kgv Assigned To kgv => bugmaster
2015-10-16 09:39 kgv Status assigned => resolved
2015-10-16 09:39 kgv Resolution unable to reproduce => fixed
2015-10-16 09:39 kgv Status resolved => reviewed
2015-10-16 09:41 kgv Description Updated
2015-10-16 12:50 mkv Assigned To bugmaster => apv
2015-10-16 16:58 git Note Added: 0047107
2015-10-16 16:59 apv Note Added: 0047108
2015-10-20 14:51 apv Test case number => Not needed
2015-10-20 14:52 apv Note Added: 0047222
2015-10-20 14:52 apv Assigned To apv => bugmaster
2015-10-20 14:52 apv Status reviewed => tested
2015-10-23 12:30 bugmaster Changeset attached => occt master fe30607a
2015-10-23 12:30 bugmaster Status tested => verified
2016-04-17 14:42 git Note Added: 0053214
2016-04-20 15:42 aiv Fixed in Version => 7.0.0
2016-04-20 15:51 aiv Status verified => closed