CGAL users discussion list

[Tom Van Doorsselaere <>]

Sorry for that, Monique. I should have checked before asking.

In any case, also your parameters do not work for me:

------------
tom@laptop-atlantis ~/extrasoft/cgal/CGAL-4.6 $ clang++ -v
clang version 3.5.0 (tags/RELEASE_350/final)
Target: x86_64-pc-linux-gnu
Thread model: posix
Selected GCC installation: /usr/lib/gcc/x86_64-pc-linux-gnu/4.9.2

tom@laptop-atlantis ~/extrasoft/cgal/CGAL-4.6 $ cmake
-DCMAKE_CXX_COMPILER=clang++ -DCMAKE_C_COMPILER=clang .
== Setting paths ==
-- Build CGAL from release in directory CGAL-4.6
-- Packagenames: CGAL-4.6
== Setting paths (DONE) ==

== Generate version files ==
-- CGAL_MAJOR_VERSION=4
-- CGAL_MINOR_VERSION=6
-- CGAL_BUGFIX_VERSION=0
-- CGAL_SONAME_VERSION=11
-- CGAL_SOVERSION     =11.0.0
-- CGAL_REFERENCE_CACHE_DIR=
-- Building shared libraries
-- Targetting Unix Makefiles
-- Using /usr/bin/clang++ compiler.
-- USING CMake version: 3.1.0
-- System: Linux
== Generate version files (DONE) ==

== Set up flags ==
-- Build type: Release
-- USING CXXFLAGS = ' -O3 -DNDEBUG'
-- USING LDFLAGS = ' '
== Set up flags (DONE) ==
... (more output cut) ...

tom@laptop-atlantis ~/data/results/2015/0501_dispersivewaves_ramonoliver
$ clang++ -I$HOME/extrasoft/cgal/CGAL-4.6/include
-L$HOME/extrasoft/cgal/CGAL-4.6/lib -lCGAL -lgmp -o testreadin
testreadinwriteout.cpp

tom@laptop-atlantis ~/data/results/2015/0501_dispersivewaves_ramonoliver
$ LD_LIBRARY_PATH=/home/tom/extrasoft/cgal/CGAL-4.6/lib:$LD_LIBRARY_PATH
ldd ./testreadin
        linux-vdso.so.1 (0x00007fff039ae000)
        libCGAL.so.11 =>
/home/tom/extrasoft/cgal/CGAL-4.6/lib/libCGAL.so.11 (0x00007fc811156000)
        libgmp.so.10 => /usr/lib64/libgmp.so.10 (0x00007fc810edf000)
        libstdc++.so.6 =>
/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.2/libstdc++.so.6 (0x00007fc810bcf000)
        libm.so.6 => /lib64/libm.so.6 (0x00007fc8108d3000)
        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007fc8106bc000)
        libc.so.6 => /lib64/libc.so.6 (0x00007fc81031f000)
        libmpfr.so.4 => /usr/lib64/libmpfr.so.4 (0x00007fc8100c1000)
        libboost_thread.so.1.56.0 =>
/usr/lib64/libboost_thread.so.1.56.0 (0x00007fc80fe9d000)
        libboost_system.so.1.56.0 =>
/usr/lib64/libboost_system.so.1.56.0 (0x00007fc80fc99000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fc80fa7e000)
        /lib64/ld-linux-x86-64.so.2 (0x00007fc81137f000)
        librt.so.1 => /lib64/librt.so.1 (0x00007fc80f876000)

tom@laptop-atlantis ~/data/results/2015/0501_dispersivewaves_ramonoliver
$ LD_LIBRARY_PATH=/home/tom/extrasoft/cgal/CGAL-4.6/lib:$LD_LIBRARY_PATH
./testreadin --write
writing out triangulationGelukt

tom@laptop-atlantis ~/data/results/2015/0501_dispersivewaves_ramonoliver
$ LD_LIBRARY_PATH=/home/tom/extrasoft/cgal/CGAL-4.6/lib:$LD_LIBRARY_PATH
./testreadin --read
reading in triangulationCGAL error: assertion violation!
Expression : false
File       :
/home/tom/extrasoft/cgal/CGAL-4.6/include/CGAL/Triangulation_3.h
Line       : 6402
Explanation:
Refer to the bug-reporting instructions at
http://www.cgal.org/bug_report.html
terminate called after throwing an instance of 'CGAL::Assertion_exception'
  what():  CGAL ERROR: assertion violation!
Expr: false
File: /home/tom/extrasoft/cgal/CGAL-4.6/include/CGAL/Triangulation_3.h
Line: 6402
Aborted

-------------

So, even if I use exactly the same library and compilers as Monique, my
program does not work on my laptop nor my desktop, but it does for
Monique. Yet again, it throws the same assertion as with other versions
and compilers.

What sort of system did you use, Monique?

Tom



On 05/12/15 16:28, Monique Teillaud wrote:
> Le 12/05/15 16:15, Tom Van Doorsselaere a écrit :
>> I have also used the clang++ compiler and icpc compiler (for CGAL and
>> the demo program). For both of these compilers I get the same assertion
>> fault.
>>
>> Monique, what versions of CGAL and clang compiler did you use?
> 
> see the email that I sent yesterday (the inclusion is still visible below)
> 
>> On 05/12/15 15:39, Tom Van Doorsselaere wrote:
>>> As promised, I have tested the code on two computers, with different
>>> versions of gcc (4.4.7 and 4.9.2) and with different combinations of
>>> flags. However, I always get stuck at the assertion violation.
>>>
>>> I have also tried CGAL version 4.3 and 4.0.2.
>>>
>>> I have further simplified the example (so it doesn't need gnu++0x
>>> anylonger, and fixing the space Monique pointed out). Now it compiles
>>> with
>>> g++ -frounding-math -lCGAL -lgmp -o testreadin testreadinwriteout.cpp
>>> but the problem persists.
>>>
>>> After running
>>> -----------------
>>>>> ./testreadin --write
>>> writing out triangulationGelukt
>>> -----------------
>>> the reading in of the triangulation fails:
>>>
>>> -----------------
>>>>> ./testreadin --read
>>> terminate called after throwing an instance of
>>> 'CGAL::Assertion_exception'
>>>    what():  CGAL ERROR: assertion violation!
>>> Expr: false
>>> File: /usr/include/CGAL/Triangulation_3.h
>>> Line: 5330
>>> reading in triangulationAborted
>>> -----------------
>>>
>>> I will look into compiling CGAL with clang or icc. However, in the end,
>>> I suppose I would like to use gcc, because it is readily available on
>>> most systems.
>>>
>>> Can anybody reproduce the assertion using gcc on their computer?
>>>
>>> Thanks,
>>>
>>> Tom
>>>
>>>
>>> On 05/12/15 09:33, Tom Van Doorsselaere wrote:
>>>> Dear Monique,
>>>>
>>>> Thanks for your e-mail.
>>>>
>>>> This is very interesting indeed. It thus means that
>>>> - either it is a compiler issue,
>>>> - or I am forgetting a compiler flag or have a flag too much.
>>>>
>>>> I will try this afternoon with different versions of gcc and with a
>>>> combination of flags.
>>>>
>>>> Thanks for your input! I had not thought in this direction.
>>>>
>>>> Tom
>>>>
>>>>
>>>> On 05/11/15 19:14, Monique Teillaud wrote:
>>>>> Le 08/05/15 17:27, Tom Van Doorsselaere a écrit :
>>>>>> Dear CGAL enthousiasts,
>>>>>
>>>>> :)
>>>>> Dear Tom,
>>>>>
>>>>>> I'm building a program for the rendering of emission of solar coronal
>>>>>> models.
>>>>>
>>>>> This sounds very interesting.
>>>>>
>>>>> I tested your code on my laptop, with CGAL 4.6, both release and debug
>>>>> modes, clang 5.0.
>>>>>
>>>>> I had to add a space line 61 to avoid the consecutive >>
>>>>> vector<vector<double> > allvar;
>>>>> Then it compiled.
>>>>>
>>>>> teillaud@tzitziki:~/CGAL/test >./testreadinwriteout --write
>>>>> writing out triangulationGelukt
>>>>> teillaud@tzitziki:~/CGAL/test >./testreadinwriteout --read
>>>>> reading in triangulationGelukt
>>>>>
>>>>> If I understand correctly, this is the result that you expect. It
>>>>> seems
>>>>> to work like a charm...
>>>>>
>>>>> Best regards,
>>>>
>>>
>>
> 
>