This class facilitates reading in vectors from Exodus file that may be of a different floating point type than Real. More...

#include <exodusII_io_helper.h>

Public Member Functions
	MappedInputVector (std::vector< Real > &vec_in, bool single_precision_in)

	~MappedInputVector ()

void *	data ()

Private Attributes
std::vector< Real > &	our_data

bool	single_precision

std::vector< double >	double_vec

std::vector< float >	float_vec

Detailed Description

This class facilitates reading in vectors from Exodus file that may be of a different floating point type than Real.

It employs basically the same approach as the MappedOutputVector, just going in the opposite direction. For more information, see the MappedOutputVector class docs.

Definition at line 1100 of file exodusII_io_helper.h.

Constructor & Destructor Documentation

◆ MappedInputVector()

libMesh::ExodusII_IO_Helper::MappedInputVector::MappedInputVector	(	std::vector< Real > &	vec_in,
		bool	single_precision_in
	)

Definition at line 736 of file exodusII_io_helper.C.

  : our_data(our_data_in),
    single_precision(single_precision_in)
{
  // Allocate temporary space to store enough floats/doubles, if required.
  if (single_precision)
    {
      if (sizeof(Real) != sizeof(float))
        float_vec.resize(our_data.size());
    }
  else if (sizeof(Real) != sizeof(double))
    double_vec.resize(our_data.size());
}

References double_vec, float_vec, our_data, libMesh::Real, and single_precision.

◆ ~MappedInputVector()

libMesh::ExodusII_IO_Helper::MappedInputVector::~MappedInputVector ( )

Definition at line 752 of file exodusII_io_helper.C.

{
  if (single_precision)
    {
      if (sizeof(Real) != sizeof(float))
        our_data.assign(float_vec.begin(), float_vec.end());
    }
  else if (sizeof(Real) != sizeof(double))
    our_data.assign(double_vec.begin(), double_vec.end());
}

References libMesh::Real.

Member Function Documentation

◆ data()

void * libMesh::ExodusII_IO_Helper::MappedInputVector::data ( )

Definition at line 765 of file exodusII_io_helper.C.

{
  if (single_precision)
    {
      if (sizeof(Real) != sizeof(float))
        return static_cast<void*>(float_vec.data());
    }
 
  else if (sizeof(Real) != sizeof(double))
    return static_cast<void*>(double_vec.data());
 
  // Otherwise return a (suitably casted) pointer to the original underlying data.
  return static_cast<void *>(our_data.data());
}