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_dgsmatrix-dgsmatrix.hpp
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00001 //=============================================================================
00002 /*! _dgsmatrix+dgsmatrix operator */
00003 inline _dgsmatrix operator+(const _dgsmatrix& matA, const dgsmatrix& matB)
00004 {VERBOSE_REPORT;
00005 #ifdef  CPPL_DEBUG
00006   if(matA.n!=matB.n || matA.m!=matB.m){
00007     ERROR_REPORT;
00008     std::cerr << "These two matrises can not make a summation." << std::endl
00009               << "Your input was (" << matA.m << "x" << matA.n << ") + (" << matB.m << "x" << matB.n << ")." << std::endl;
00010     exit(1);
00011   }
00012 #endif//CPPL_DEBUG
00013 
00014   dgsmatrix newmat(matA);
00015   for(std::vector<dcomponent>::const_iterator it=matB.data.begin(); it!=matB.data.end(); it++){
00016     newmat(it->i,it->j) += it->v;
00017   }
00018   return _(newmat);
00019 }
00020 
00021 //=============================================================================
00022 /*! _dgsmatrix-dgsmatrix operator */
00023 inline _dgsmatrix operator-(const _dgsmatrix& matA, const dgsmatrix& matB)
00024 {VERBOSE_REPORT;
00025 #ifdef  CPPL_DEBUG
00026   if(matA.n!=matB.n || matA.m!=matB.m){
00027     ERROR_REPORT;
00028     std::cerr << "These two matrises can not make a subtraction." << std::endl
00029               << "Your input was (" << matA.m << "x" << matA.n << ") - (" << matB.m << "x" << matB.n << ")." << std::endl;
00030     exit(1);
00031   }
00032 #endif//CPPL_DEBUG
00033 
00034   dgsmatrix newmat(matA);
00035   for(std::vector<dcomponent>::const_iterator it=matB.data.begin(); it!=matB.data.end(); it++){
00036     newmat(it->i,it->j) -= it->v;
00037   }
00038   return _(newmat);
00039 }
00040 
00041 //=============================================================================
00042 /*! _dgsmatrix*dgsmatrix operator */
00043 inline _dgsmatrix operator*(const _dgsmatrix& matA, const dgsmatrix& matB)
00044 {VERBOSE_REPORT;
00045 #ifdef  CPPL_DEBUG
00046   if(matA.n!=matB.m){
00047     ERROR_REPORT;
00048     std::cerr << "These two matrises can not make a product." << std::endl
00049               << "Your input was (" << matA.m << "x" << matA.n << ") * (" << matB.m << "x" << matB.n << ")." << std::endl;
00050     exit(1);
00051   }
00052 #endif//CPPL_DEBUG
00053   
00054   dgsmatrix newmat( matA.m, matB.n );
00055   for(std::vector<dcomponent>::const_iterator it=matA.data.begin(); it!=matA.data.end(); it++){
00056     long k(it->j);
00057     std::vector<uint32_t>::const_iterator p;
00058     for(p=matB.rows[k].begin(); p!=matB.rows[k].end(); p++){
00059       newmat(it->i,matB.data[*p].j) += it->v*matB.data[*p].v;
00060     }
00061   }
00062   
00063   matA.destroy();
00064   return _(newmat);
00065 }
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