FLA_Absolute_square.c File Reference

(r12600)

Functions
FLA_Error	FLA_Absolute_square (FLA_Obj alpha)

---

Function Documentation

FLA_Error FLA_Absolute_square

(

FLA_Obj

alpha

)

References FLA_Absolute_square_check(), FLA_Check_error_level(), FLA_Obj_datatype(), scomplex::imag, dcomplex::imag, scomplex::real, and dcomplex::real.

Referenced by FLA_Ttmm_l_unb_var1(), FLA_Ttmm_l_unb_var2(), FLA_Ttmm_l_unb_var3(), FLA_Ttmm_u_unb_var1(), FLA_Ttmm_u_unb_var2(), and FLA_Ttmm_u_unb_var3().

{
  FLA_Datatype datatype;

  if ( FLA_Check_error_level() >= FLA_MIN_ERROR_CHECKING )
    FLA_Absolute_square_check( alpha );

  datatype = FLA_Obj_datatype( alpha );
  
  switch ( datatype ){

  case FLA_FLOAT:
  {
    float *buff_alpha = ( float * ) FLA_FLOAT_PTR( alpha );

    *buff_alpha = (*buff_alpha) * (*buff_alpha);

    break;
  }

  case FLA_DOUBLE:
  {
    double *buff_alpha = ( double * ) FLA_DOUBLE_PTR( alpha );

    *buff_alpha = (*buff_alpha) * (*buff_alpha);

    break;
  }

  case FLA_COMPLEX:
  {
    scomplex *buff_alpha = ( scomplex * ) FLA_COMPLEX_PTR( alpha );

    buff_alpha->real = buff_alpha->real * buff_alpha->real + 
                       buff_alpha->imag * buff_alpha->imag; 
    buff_alpha->imag = 0.0F; 

    break;
  }

  case FLA_DOUBLE_COMPLEX:
  {
    dcomplex *buff_alpha = ( dcomplex * ) FLA_DOUBLE_COMPLEX_PTR( alpha );

    buff_alpha->real = buff_alpha->real * buff_alpha->real + 
                       buff_alpha->imag * buff_alpha->imag; 
    buff_alpha->imag = 0.0; 

    break;
  }

  }

  return FLA_SUCCESS;
}