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| coding C++ and calling singular routines https://www.singular.uni-kl.de/forum/viewtopic.php?f=10&t=2587 |
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| Author: | machielk [ Wed Mar 15, 2017 6:35 pm ] |
| Post subject: | coding C++ and calling singular routines |
Can I write a C++ code, and then link to some kind of Singular library so I can call Singular functions to solve my sets of polynomials from within my C++ code? Is there some manual somewhere to explain me how to do it? If not, is there any other "system of polynomials solving" software that I can do this? I am currently looking into PHCpack which seems to be offer this possibility, but it's not straightforward. Are there any others? Bertini? Hompack? Macaulay2? Cheers, Machiel |
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| Author: | hannes [ Thu Mar 16, 2017 6:18 pm ] |
| Post subject: | Re: coding C++ and calling singular routines |
Examples of using libSingular can be found at: https://github.com/Singular/Sources/blo ... g-test1.cc https://github.com/Singular/Sources/blo ... g-test2.cc The comment at the beginning are for version 3.x.x, for version 4.x.x use the output of libsingular-config (resp. pkg-config). To find the functions to call see https://www.singular.uni-kl.de/dox/html/ (doxygen output from the sources) and http://www.mathematik.uni-kl.de/ftp/pub ... natomy.tgz |
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| Author: | machielk [ Mon Mar 20, 2017 5:43 pm ] |
| Post subject: | Re: coding C++ and calling singular routines |
Hi, Thanks for your reply. I tried doing what you suggested. I.e., I downloaded the source code for Singular from https://github.com/Singular/Sources Then I compiled, using: Quote: source autogen.sh ./configure make Next, in my a subroutine, "mywork", where I copied the file Quote: "https://github.com/Singular/Sources/blob/master/libsing-test1.cc" To compile this, I had to link to numerous include and lib directories, like this: Quote: g++ -I../Singular/ -I../ -I../libpolys/ -I../factory/include/ -o libsing_test1 libsing-test1.cc -L../Singular/.libs/ -lSingular However, this gives me the error: Quote: /usr/bin/ld: /tmp/ccWfd0mN.o: undefined reference to symbol '_Z6p_ISetlP8ip_sring' //home/mkolstein/Singular/Sources-spielwiese/libpolys/polys/.libs/libpolys-4.0.3.so: error adding symbols: DSO missing from command line Do you have any suggestions, how to fix this? |
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| Author: | machielk [ Mon Mar 20, 2017 6:45 pm ] |
| Post subject: | Re: coding C++ and calling singular routines |
To answer my own question, to compile, I needed the following command: Quote: g++ -I../Singular/ -I../ -I../libpolys/ -I../factory/include/ -o libsing_test1 libsing-test1.cc -L../Singular/.libs/ -lSingular -L../libpolys/polys/.libs/ -lpolys -L../resources/.libs/ -lsingular_resources -L../omalloc/.libs/ -lomalloc Later, to run the executable "libsing_test1", I needed to set the following environments: Quote: export SINGULAR_BASE=/home/mkolstein/Singular/Sources-spielwiese/
export SINGULAR_LIB_DIR=$SINGULAR_BASE/Singular/.libs/ export SINGULAR_LIB_2=$SINGULAR_BASE/libpolys/polys/.libs/ export SINGULAR_LIB_3=$SINGULAR_BASE/resources/.libs/ export SINGULAR_LIB_4=$SINGULAR_BASE/omalloc/.libs/ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$SINGULAR_LIB_DIR:$SINGULAR_LIB_2:$SINGULAR_LIB_3:$SINGULAR_LIB_4 |
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