[e4d44b] | 1 | export CC="gcc -fpic -DPIC -DLIBSINGULAR" |
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[2eb19e] | 2 | export CXX="g++ -fpic -DPIC -DLIBSINGULAR" |
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[dc0a3b] | 3 | |
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[e4d44b] | 4 | ./configure |
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[dc0a3b] | 5 | or |
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| 6 | ./configure --without-dynamic-kernel |
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| 7 | |
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[e4d44b] | 8 | make install-libsingular |
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| 9 | |
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[3ce617] | 10 | --------------------------------------- |
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| 11 | how to compile and run the the example: |
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| 12 | g++ -I......include -o tt tt.cc -L..../Singular -lsingular |
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[5f32d50] | 13 | export SINGULAR="..../Singular-3-1-3/" |
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| 14 | export SINGULAR_SYSTEM_TYPE="ix86Mac-darwin/lib" |
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| 15 | if [ "${SINGULAR_SYSTEM_TYPE}" = "ix86Mac-darwin/lib" ]; then |
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| 16 | export |
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| 17 | DYLD_LIBRARY_PATH="${SINGULAR}/${SINGULAR_SYSTEM_TYPE}:${DYLD_LIBRARY_PATH}" |
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| 18 | else |
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| 19 | export |
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| 20 | LD_LIBRARY_PATH="${SINGULAR}/${SINGULAR_SYSTEM_TYPE}:${LD_LIBRARY_PATH}" |
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| 21 | fi |
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| 22 | unset SINGULAR_SYSTEM_TYPE |
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| 23 | |
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[3ce617] | 24 | ./tt |
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| 25 | -------------------------------------- |
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| 26 | the example: |
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| 27 | #include <libsingular.h> |
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[70b4f4] | 28 | main() |
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[3ce617] | 29 | { |
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| 30 | // init path names etc. |
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[70b4f4] | 31 | siInit((char *)"/...Singular-3-1-3/Singular/libsingular.so"); |
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[3ce617] | 32 | |
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| 33 | // construct the ring Z/32003[x,y,z] |
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| 34 | // the variable names |
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| 35 | char **n=(char**)omalloc(3*sizeof(char*)); |
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| 36 | n[0]=omStrDup("x"); |
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| 37 | n[1]=omStrDup("y"); |
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[70b4f4] | 38 | n[2]=omStrDup("z2"); |
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[3ce617] | 39 | |
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| 40 | ring R=rDefault(32003,3,n); |
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| 41 | // make R the default ring: |
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| 42 | rChangeCurrRing(R); |
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| 43 | |
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| 44 | // create the polynomial 1 |
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| 45 | poly p1=p_ISet(1,R); |
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| 46 | |
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| 47 | // create tthe polynomial 2*x^3*z^2 |
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| 48 | poly p2=p_ISet(2,R); |
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| 49 | pSetExp(p2,1,3); |
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| 50 | pSetExp(p2,3,2); |
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| 51 | pSetm(p2); |
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| 52 | |
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| 53 | // print p1 + p2 |
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| 54 | pWrite(p1); printf(" + \n"); pWrite(p2); printf("\n"); |
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| 55 | |
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| 56 | // compute p1+p2 |
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| 57 | p1=p_Add_q(p1,p2,R); p2=NULL; |
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| 58 | pWrite(p1); |
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| 59 | |
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[70b4f4] | 60 | // clean up: |
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[3ce617] | 61 | pDelete(&p1); |
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| 62 | rKill(R); |
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[70b4f4] | 63 | |
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| 64 | currentVoice=feInitStdin(NULL); |
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| 65 | // hook for error handling: |
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| 66 | // WerrorS_callback=......; of type p(const char *) |
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| 67 | int err=iiEStart(omStrDup("int ver=system(\"version\");export ver;return();\n"),NULL); |
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| 68 | if (err) errorreported = 0; // reset error handling |
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| 69 | printf("interpreter returns %d\n",err); |
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| 70 | idhdl h=ggetid("ver"); |
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| 71 | if (h!=NULL) |
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| 72 | printf("singular variable ver of type %d contains %d\n",h->typ,(int)(long)IDDATA(h)); |
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| 73 | else |
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| 74 | printf("variable ver does not exist\n"); |
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| 75 | |
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| 76 | // calling a singular-library function |
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| 77 | idhdl datetime=ggetid("datetime"); |
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| 78 | if (datetime==NULL) |
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| 79 | printf("datetime not found\n"); |
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| 80 | else |
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| 81 | { |
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| 82 | leftv res=iiMake_proc(datetime,NULL,NULL); |
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| 83 | if (res==NULL) { printf("datetime return an error\n"); errorreported = 0; } |
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| 84 | else printf("datetime returned type %d, >>%s<<\n",res->Typ(),(char *)res->Data()); |
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| 85 | } |
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| 86 | |
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| 87 | // calling a kernel function via the interpreter interface |
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| 88 | sleftv r1; memset(&r1,0,sizeof(r1)); |
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| 89 | sleftv arg; memset(&arg,0,sizeof(r1)); |
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| 90 | arg.rtyp=STRING_CMD; |
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| 91 | arg.data=omStrDup("huhu"); |
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| 92 | err=iiExprArith1(&r1,&arg,TYPEOF_CMD); |
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| 93 | printf("interpreter returns %d\n",err); |
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| 94 | if (err) errorreported = 0; // reset error handling |
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| 95 | else printf("typeof returned type %d, >>%s<<\n",r1.Typ(),r1.Data()); |
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| 96 | // clean up r1: |
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| 97 | r1.CleanUp(); |
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[3ce617] | 98 | } |
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