CPPLapack
 All Classes Files Functions Variables Friends
Functions
zgbmatrix-_zgbmatrix.hpp File Reference

Go to the source code of this file.

Functions

_zgbmatrix operator+ (const zgbmatrix &matA, const _zgbmatrix &matB)
_zgbmatrix operator- (const zgbmatrix &matA, const _zgbmatrix &matB)
_zgbmatrix operator* (const zgbmatrix &matA, const _zgbmatrix &matB)

Function Documentation

_zgbmatrix operator+ ( const zgbmatrix matA,
const _zgbmatrix matB 
) [inline]

zgbmatrix+_zgbmatrix operator

Definition at line 133 of file zgbmatrix-_zgbmatrix.hpp.

References _(), _zgbmatrix::destroy(), i(), _zgbmatrix::kl, zgbmatrix::kl, zgbmatrix::ku, _zgbmatrix::ku, zgbmatrix::m, _zgbmatrix::m, _zgbmatrix::n, zgbmatrix::n, and zgbmatrix::zero().

{VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  if(matA.n!=matB.n || matA.m!=matB.m){
    ERROR_REPORT;
    std::cerr << "These two matrises can not make a summation." << std::endl
              << "Your input was (" << matA.m << "x" << matA.n << ") + (" << matB.m << "x" << matB.n << ")." << std::endl;
    exit(1);
  }
#endif//CPPL_DEBUG
  
  if(matB.kl>matA.kl && matB.ku>matA.ku){
    for(long i=0; i<matA.m; i++){
      for(long j=std::max(long(0),i-matA.kl); j<std::min(matA.n,i+matA.ku+1); j++){
        matB(i,j)+=matA(i,j);
      }
    }
    
    return matB;
  }
  else{
    zgbmatrix newmat(matA.m,matA.n,std::max(matA.kl,matB.kl),std::max(matA.ku,matB.ku));
    newmat.zero();
    
    for(long i=0; i<matA.m; i++){
      for(long j=std::max(long(0),i-matA.kl); j<std::min(matA.n,i+matA.ku+1); j++){
        newmat(i,j)+=matA(i,j);
      }
      for(long j=std::max(long(0),i-matB.kl); j<std::min(matB.n,i+matB.ku+1); j++){
        newmat(i,j)+=matB(i,j);
      }
    }
    
    matB.destroy();
    return _(newmat);
  }
}
_zgbmatrix operator- ( const zgbmatrix matA,
const _zgbmatrix matB 
) [inline]

zgbmatrix-_zgbmatrix operator

Definition at line 173 of file zgbmatrix-_zgbmatrix.hpp.

References _(), _zgbmatrix::destroy(), i(), zgbmatrix::kl, _zgbmatrix::kl, _zgbmatrix::ku, zgbmatrix::ku, zgbmatrix::m, _zgbmatrix::m, _zgbmatrix::n, zgbmatrix::n, and zgbmatrix::zero().

{VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  if(matA.n!=matB.n || matA.m!=matB.m){
    ERROR_REPORT;
    std::cerr << "These two matrises can not make a subtraction." << std::endl
              << "Your input was (" << matA.m << "x" << matA.n << ") - (" << matB.m << "x" << matB.n << ")." << std::endl;
    exit(1);
  }
#endif//CPPL_DEBUG
  
  zgbmatrix newmat(matA.m,matA.n,std::max(matA.kl,matB.kl),std::max(matA.ku,matB.ku));
  newmat.zero();
  
  for(long i=0; i<matA.m; i++){
    for(long j=std::max(long(0),i-matA.kl); j<std::min(matA.n,i+matA.ku+1); j++){
      newmat(i,j)+=matA(i,j);
    }
    for(long j=std::max(long(0),i-matB.kl); j<std::min(matB.n,i+matB.ku+1); j++){
      newmat(i,j)-=matB(i,j);
    }
  }
  
  matB.destroy();
  return _(newmat);
}
_zgbmatrix operator* ( const zgbmatrix matA,
const _zgbmatrix matB 
) [inline]

zgbmatrix*_zgbmatrix operator

Definition at line 202 of file zgbmatrix-_zgbmatrix.hpp.

References _(), _zgbmatrix::destroy(), i(), zgbmatrix::kl, _zgbmatrix::kl, _zgbmatrix::ku, zgbmatrix::ku, _zgbmatrix::m, zgbmatrix::m, _zgbmatrix::n, zgbmatrix::n, and zgbmatrix::zero().

{VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  if(matA.n!=matB.m){
    ERROR_REPORT;
    std::cerr << "These two matrises can not make a product." << std::endl
              << "Your input was (" << matA.m << "x" << matA.n << ") * (" << matB.m << "x" << matB.n << ")." << std::endl;
    exit(1);
  }
#endif//CPPL_DEBUG
  
  zgbmatrix newmat( matA.m, matB.n, std::min(matA.kl+matB.kl,matA.m-1), std::min(matA.ku+matB.ku,matB.n-1) );
  newmat.zero();
  
  for(long i=0; i<newmat.m; i++){
    for(long j=std::max(long(0),i-newmat.kl); j<std::min(newmat.n,i+newmat.ku+1); j++){
      for(long k=std::max( std::max(long(0),i-matA.kl), std::max(long(0),j-matB.ku) );
          k< std::min( std::min(matA.n,i+matA.ku+1), std::min(matB.m,j+matB.kl+1) ); k++){
        newmat(i,j)+= matA(i,k)*matB(k,j);
      }
    }
  }
  
  matB.destroy();
  return _(newmat);
}
 All Classes Files Functions Variables Friends