FLA_Copyr_l_blk_var2.c File Reference

(r)

Functions
FLA_Error	FLA_Copyr_l_blk_var2 (FLA_Obj A, FLA_Obj B, fla_copyr_t *cntl)

Function Documentation

FLA_Copyr_l_blk_var2()

FLA_Error FLA_Copyr_l_blk_var2	(	FLA_Obj	A,
		FLA_Obj	B,
		fla_copyr_t *	cntl )

{
  FLA_Obj ATL,   ATR,      A00, A01, A02, 
          ABL,   ABR,      A10, A11, A12,
                           A20, A21, A22;
 
  FLA_Obj BTL,   BTR,      B00, B01, B02, 
          BBL,   BBR,      B10, B11, B12,
                           B20, B21, B22;
 
  dim_t b;
 
  FLA_Part_2x2( A,    &ATL, &ATR,
                      &ABL, &ABR,     0, 0, FLA_BR );
 
  FLA_Part_2x2( B,    &BTL, &BTR,
                      &BBL, &BBR,     0, 0, FLA_BR );
 
  while ( FLA_Obj_min_dim( ATL ) > 0 ){
 
    b = FLA_Determine_blocksize( ATL, FLA_TL, FLA_Cntl_blocksize( cntl ) );
 
    FLA_Repart_2x2_to_3x3( ATL, /**/ ATR,       &A00, &A01, /**/ &A02,
                                                &A10, &A11, /**/ &A12,
                        /* ************* */   /* ******************** */
                           ABL, /**/ ABR,       &A20, &A21, /**/ &A22,
                           b, b, FLA_TL );
 
    FLA_Repart_2x2_to_3x3( BTL, /**/ BTR,       &B00, &B01, /**/ &B02,
                                                &B10, &B11, /**/ &B12,
                        /* ************* */   /* ******************** */
                           BBL, /**/ BBR,       &B20, &B21, /**/ &B22,
                           b, b, FLA_TL );
 
    /*------------------------------------------------------------*/
 
    // B11 = tril( A11 );
    FLA_Copyr_internal( FLA_LOWER_TRIANGULAR, A11, B11,
                        FLA_Cntl_sub_copyr( cntl ) );
 
    // B10 = A10;
    FLA_Copy_internal( A10, B10,
                       FLA_Cntl_sub_copy( cntl ) );
 
    /*------------------------------------------------------------*/
 
    FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR,       A00, /**/ A01, A02,
                            /* ************** */  /* ****************** */
                                                     A10, /**/ A11, A12,
                              &ABL, /**/ &ABR,       A20, /**/ A21, A22,
                              FLA_BR );
 
    FLA_Cont_with_3x3_to_2x2( &BTL, /**/ &BTR,       B00, /**/ B01, B02,
                            /* ************** */  /* ****************** */
                                                     B10, /**/ B11, B12,
                              &BBL, /**/ &BBR,       B20, /**/ B21, B22,
                              FLA_BR );
  }
 
  return FLA_SUCCESS;
}

References FLA_Cont_with_3x3_to_2x2(), FLA_Copy_internal(), FLA_Copyr_internal(), FLA_Determine_blocksize(), FLA_Obj_min_dim(), FLA_Part_2x2(), and FLA_Repart_2x2_to_3x3().

Referenced by FLA_Copyr_l().