Open CASCADE Technology 7.8.0 released

The documentation https://dev.opencascade.org/doc/overview/html/occt__upgrade.html refers to the old version 7.7.0.

Hello,
Unfortunately, compilation fails with clang-16:

FAILED: src/TKernel/CMakeFiles/TKernel.dir/__/Message/Message_AttributeMeter.cxx.o
/usr/bin/c++ -DHAVE_DRACO -DHAVE_FFMPEG -DHAVE_FREEIMAGE -DHAVE_FREETYPE -DHAVE_GLES2_EXT -DHAVE_OPENGL_EXT -DHAVE_RAPIDJSON -DHAVE_TBB -DHAVE_TK -DHAVE_VTK -DHAVE_XLIB -DOCC_CONVERT_SIGNALS -DTKernel_EXPORTS -DVTK_OPENGL2_BACKEND -I/usr/local/include/tcl8.6 -I/usr/local/include/tk8.6 -I/usr/local/include/freetype2 -I/usr/local/include/vtk-9.2 -I/usr/local/ffmpeg4/include -I/usr/local/include/draco -I/usr/ports/cad/opencascade/work/.build/usr/local/include/OpenCASCADE -O2 -pipe -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing -isystem /usr/local/include -fexceptions -fPIC -Wall -Wextra -Wshorten-64-to-32 -O2 -pipe -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing -isystem /usr/local/include -DNDEBUG -DNo_Exception -std=gnu++11 -fPIC -MD -MT src/TKernel/CMakeFiles/TKernel.dir/__/Message/Message_AttributeMeter.cxx.o -MF src/TKernel/CMakeFiles/TKernel.dir/__/Message/Message_AttributeMeter.cxx.o.d -o src/TKernel/CMakeFiles/TKernel.dir/__/Message/Message_AttributeMeter.cxx.o -c /usr/ports/cad/opencascade/work/OCCT-7_8_0/src/Message/Message_AttributeMeter.cxx
/usr/ports/cad/opencascade/work/OCCT-7_8_0/src/Message/Message_AttributeMeter.cxx:256:43: error: cannot pass object of non-trivial type 'const std::pair<double, double>' through variadic function; call will abort at runtime [-Wnon-pod-varargs]
2, anIterator.Value(), anIterator.Value())
^
/usr/ports/cad/opencascade/work/OCCT-7_8_0/src/Message/Message_AttributeMeter.cxx:256:63: error: cannot pass object of non-trivial type 'const std::pair<double, double>' through variadic function; call will abort at runtime [-Wnon-pod-varargs]
2, anIterator.Value(), anIterator.Value())
^
2 errors generated.

Hello,

can you tag the version in git?

Thanks

In fact, I only see a branch not a tag. But anyway, the code is there.

Thanks.

genproj gives error;

PS C:\OpenCASCADE-7.8\OCCT_7_8_0> .\genproj.bat
Preparing to generate vc143 projects for wnt platform...
Collecting required header files into C:/OpenCASCADE-7.8/OCCT_7_8_0/inc ...
Generating VS project files for vc143
Error: Cannot determine type of unit FlexLexer, check adm/UDLIST!
while executing
"error "Error: Cannot determine type of unit $loc, check adm/UDLIST!" "
(procedure "osutils:tk:files" line 17)
invoked from within
"osutils:tk:files $tkloc [osutils:compilable $thePlatform] $theSrcDir"
(procedure "osutils:tk:cxxfiles" line 1)
invoked from within
"osutils:tk:cxxfiles $xlo wnt $theSrcDir"
(procedure "osutils:vcproj" line 64)
invoked from within
"osutils:vcproj $theVcVer $isUWP $theOutDir $aToolKit aGuidsMap $theSrcDir $theSourceDirOther"
(procedure "OS:vcproj" line 8)
invoked from within
"OS:vcproj $theVcVer $isUWP $aModule $theOutDir ::THE_GUIDS_LIST "src" """
(procedure "OS:MKVC" line 8)
invoked from within
"OS:MKVC $anOutDir $aModules $aTools $theSolution $theFormat $isUWP"
(procedure "OS:MKPRC" line 105)
invoked from within
"OS:MKPRC "$anAdmPath" "$theFormat" "$aLibType" "$aPlatform" "$aCmpl" "$aSolution""
(procedure "genproj" line 95)
invoked from within
"genproj vc143 wnt -solution OCCT"
("eval" body line 1)
invoked from within
"eval $cmdname [lrange $argv 1 end]"
(file "C:\OpenCASCADE-7.8\OCCT_7_8_0\adm/start.tcl" line 30)

Great! With the patches from https://git.dev.opencascade.org/gitweb/?p=occt.git;a=commitdiff;h=ffd7a3... it builds fine on FreeBSD / clang-16.

Best regards.

The TopoDS_Shape::HashCode method is deleted, any other function get the shape hashcode?

Hello,
https://dev.opencascade.org/release
Update the Download latest release to Open CASCADE Technology 7.8.0?

Best Regards.

Compile error with 7.8.0 VS2015:

inline size_t TopLoc_Location::HashCode() const
{
  // Hashing base on IsEqual function
  if (myItems.IsEmpty())
  {
    return 0;
  }
  size_t aHash = opencascade::MurmurHash::optimalSeed<size_t>();
  TopLoc_SListOfItemLocation items = myItems;
  size_t aCombined[3];
  while (items.More())
  {
    aCombined[0] = std::hash<Handle(TopLoc_Datum3D)>{}(items.Value().myDatum);
    aCombined[1] = opencascade::hash(items.Value().myPower);
    aCombined[2] = aHash;
    aHash = opencascade::hashBytes(aCombined, sizeof(aCombined));
    items.Next();
  }
  return aHash;
}

Error:

1>------ Build started: Project: TKTopAlgo, Configuration: Debug x64 ------
1>  BRepBuilderAPI_Sewing.cxx
1>C:\ocade\3rdparty\OpenCASCADE-7.8.0\opencascade-7.8.0\inc\TopLoc_Location.lxx(83): error C2672: 'opencascade::MurmurHash::optimalSeed': no matching overloaded function found
1>C:\ocade\3rdparty\OpenCASCADE-7.8.0\opencascade-7.8.0\inc\TopLoc_Location.lxx(83): error C2770: invalid explicit template argument(s) for 'std::enable_if<sizeof(T)!=,T>::type opencascade::MurmurHash::optimalSeed(void)'
1>  C:\ocade\3rdparty\OpenCASCADE-7.8.0\opencascade-7.8.0\inc\Standard_HashUtils.hxx(55): note: see declaration of 'opencascade::MurmurHash::optimalSeed'
1>C:\ocade\3rdparty\OpenCASCADE-7.8.0\opencascade-7.8.0\inc\TopLoc_Location.lxx(83): error C2770: invalid explicit template argument(s) for 'std::enable_if<sizeof(T)==,uint64_t>::type opencascade::MurmurHash::optimalSeed(void)'
1>  C:\ocade\3rdparty\OpenCASCADE-7.8.0\opencascade-7.8.0\inc\Standard_HashUtils.hxx(49): note: see declaration of 'opencascade::MurmurHash::optimalSeed'

Hello Dmitrii.

It does not help. Visual Studio Community 2015, Version 14.0.25431.01 Update 3:

I will try to update Visual Studio. Thanks.

compilation fails in M1 Pro Mac , xcode 13.3 , macos 13.4

[ 60%] Linking CXX shared library ../../mac64/clang/lib/libTKViewerTest.dylib
ld: warning: option -s is obsolete and being ignored
Undefined symbols for architecture arm64:
"_ViewerTest_myViews", referenced from:
FindViewId(NSWindow const*) in ViewerTest_ViewerCommands_1.mm.o
-[Cocoa_WindowController windowWillClose:] in ViewerTest_ViewerCommands_1.mm.o
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [mac64/clang/lib/libTKViewerTest.7.8.0.dylib] Error 1
make[1]: *** [src/TKViewerTest/CMakeFiles/TKViewerTest.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
[ 68%] Built target TKDEIGES
[ 97%] Built target TKDESTEP

Hello everyone, please ask. I updated the local 7.6.0 source code to 7.8.0, and then compiled it, but the error shown in the picture appeared. I don't know what the reason is. Note: I compiled with android studio. The relevant marks in the diagram indicate the compilation tools used and the location of the error.

Hello!
How to compile the new version 7.8, taking into account that I already have version 7.7 installed on my computer (Windows 11) using Windows installer VC++ 2017 64 bit: opencascade-7.7.0-vc14-64.exe?
Should this version be uninstalled and/or should we wait for a similar version like opencascade-7.8.0-vc14-64.exe?
Please indicate basic steps to upgrade to this new version for this update, I am quite inexperienced in using CMake .
Thank you very much!

Dear all, after compiling OCC 7.8 (with no errors) i want to replace OCC7.5 with OCC7.8 in my project. But i am getting a linking problem with the functions Standard_Transient::IncrementRefCounter and others because they are not exported anymore. See the source code "..\OCCT-7_8_0\src\Standard\Standard_Transient.hxx" line 96.
I have exported the functions again and try to run my project again.(Still have to run the first tests...)
Any suggestions or ideas what this code modification can break at run time?
I could not find any reasonable description why the export was removed at those positions. Any description for me?

BR Manuel

Hi Dmitrii,

thanks for your reply. Both methods just working well. After a complete newly build also the linking error is gone.
Thanks....

Hi, Dmitrii,

do you know, when the binaries of additional components will be released for 7.8.0? It is already almost 1,5 month since the release of OCCT7.8.0, but still no build for the additional components...

It is hard productively to upgrade to the latest OCCT if the components are missing.

Regards,
Dzmitry