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IDProjectCategoryView StatusDate SubmittedLast Update
0022595Community[OCCT] OCCT:Modeling Algorithmspublic2011-06-10 17:292012-03-29 17:26
Reporterszy 
Assigned Tobugmaster 
PrioritynormalSeverityfeature 
StatusclosedResolutionfixed 
PlatformOSAllOS Version
Product Version 
Target Version[OCCT] 6.5.2Fixed in Version[OCCT] 6.5.2 
Test case numberchl 937 C4
Summary0022595: gp_Mat's constructors incompletely initilize memory
DescriptionRLN_fix435
- Summary: gp_Mat's constructors incompletely initilize memory when compiled by
gcc 4.1.2 with -O2
- Detailed description: gp_Mat constructors use indirect memory reference
((Standard_Real*)&matrix[0][0])[i]) to access elements of the member field
matrix[3][3]. Likely due to gcc bug this results in uninitialized memory and
further crashes when using that garbage. See details at
http://www.opencascade.org/org/forum/thread_19603/. [^]
gp_XYZ.lxx had to be fixed as well since it used the same macros defined in
gp_Mat.lxx. Macros in gp_Mat.lxx could be removed too to avoid possible
conflicts with user's code but currently left to minimize modifications.
Steps To Reproduce
Additional information
and documentation updates
TagsNo tags attached.
Relationships
child of 0022825closed abv Integration of contributions by Roman Lygin to OCCT 6.5.2 
Attached Filesgz draw_command_OCC22595.tar.gz (32,332) 2011-07-11 11:35
https://tracker.dev.opencascade.org/
gz chl_937_C4.tar.gz (494) 2011-07-11 11:36
https://tracker.dev.opencascade.org/
Issue History
Date ModifiedUsernameFieldChange
2011-07-05 18:12kgvCC => kgv
2011-07-14 18:40bugmasterStatusclosed => assigned
2011-07-14 18:40bugmasterResolutionsuspended => @0@
2011-07-14 18:40bugmasterAssigned Tobugmaster => kgv
2011-07-14 18:40bugmasterStatusassigned => tested
2011-07-14 20:36bugmasterStatustested => verified
2011-07-29 15:30bugmasterFixed in VersionEMPTY =>
2011-07-29 15:30bugmasterTarget Version => 6.5.2
2011-07-29 15:30bugmasterDescription Updatedbug_revision_view_page.php?rev_id=114#r114
2011-08-02 11:31bugmasterCategoryOCCT:MOA => OCCT:Modeling Algorithms
2011-09-07 17:19mkvTest case number => chl 937 C4
2011-11-25 11:33szyNote Edited: 0017656bug_revision_view_page.php?bugnote_id=17656#r1053
2011-12-05 11:25abvRelationship addedchild of 0022825
2012-01-17 18:35abvAssigned Tokgv => Roman Lygin
2012-03-29 17:26bugmasterChangeset attached => occt master 0c7386be

Notes
(0017655)
kgv   
2011-06-16 18:54   
SVN branch http://svn/svn/occt/branches/OCC22595_MatExplicitfields [^] passed
review without remarks.

Branch is ready for testing.
(0017656)
ycy   
2011-07-11 13:35   
(edited on: 2011-11-25 11:33)
Dear BugMaster,
SVN branch ( http://svn/svn/occt/branches/OCC22595_MatExplicitfields [^] ) was
testing, test results were compared with KAS:dev:products-651-opt

Regressions were not found
Create DRAW-command for this bug ( OCC22595 )
Test case for this bug ( chl/937/C4 )

See results in /KASDev/OCCTtests/KAS/dev/products-testing_23062011/lin
See reference results in
/QADisk/occttests/results/KAS/dev/products-651-opt_01062011/lin
See test cases in /QADisk/occttests/tests/ED
N.B. In order to launch testing case you can make use the following instructions
http://sbu.nnov.opencascade.com/maintenance/main_certification_te.html [^]
(0017659)
bugmaster   
2011-07-14 20:36   
Integrated to occt repository
Date: 2011-07-14 18:35:26 +0400 (Thu, 14 Jul 2011)
New Revision: 8691

Modified:
   trunk/src/gp/gp_Mat.lxx
   trunk/src/gp/gp_XYZ.lxx