CPPLapack
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dsymatrix-_dcovector.hpp
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00001 //=============================================================================
00002 /*! dsymatrix*_dcovector operator */
00003 inline _dcovector operator*(const dsymatrix& mat, const _dcovector& vec)
00004 {VERBOSE_REPORT;
00005 #ifdef  CPPL_DEBUG
00006   if(mat.n!=vec.l){
00007     ERROR_REPORT;
00008     std::cerr << "These matrix and vector can not make a product." << std::endl
00009               << "Your input was (" << mat.n << "x" << mat.n << ") * (" << vec.l << ")." << std::endl;
00010     exit(1);
00011   }
00012 #endif//CPPL_DEBUG
00013   
00014   dcovector newvec(mat.n);
00015   dsymv_( 'l', mat.n, 1.0, mat.array, mat.n,
00016           vec.array, 1, 0.0, newvec.array, 1 );
00017   
00018   vec.destroy();
00019   return _(newvec);
00020 }
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