DecoderFloat_IEEE754 Class Reference

#include <ErrorMatrixCompressor.h>

Collaboration diagram for DecoderFloat_IEEE754:

Classes
union	FloatLongIntUnion

Public Member Functions
	DecoderFloat_IEEE754 ()
	~DecoderFloat_IEEE754 ()
void	setF (float f)
float	getF ()
void	setL (int l)
unsigned int	getL ()
void	print ()
short int	getExponent ()
unsigned int	getMantissa ()
void	setExponent (short int)
void	setSign (int)

Public Attributes
FloatLongIntUnion	m_data

Detailed Description

Definition at line 20 of file ErrorMatrixCompressor.h.

Constructor & Destructor Documentation

DecoderFloat_IEEE754()

DecoderFloat_IEEE754::DecoderFloat_IEEE754 ( )

inline

Definition at line 30 of file ErrorMatrixCompressor.h.

    {
      m_data.f=0.0;
    }

~DecoderFloat_IEEE754()

DecoderFloat_IEEE754::~DecoderFloat_IEEE754 ( )

inline

Definition at line 34 of file ErrorMatrixCompressor.h.

{};

Member Function Documentation

getExponent()

short int DecoderFloat_IEEE754::getExponent

(

)

Definition at line 48 of file ErrorMatrixCompressor.cxx.

{
  unsigned int mask = 0x7f800000;
  return ((m_data.l & mask) >> 23);
}

getF()

float DecoderFloat_IEEE754::getF ( )

inline

Definition at line 39 of file ErrorMatrixCompressor.h.

    {
      if(m_data.l==(unsigned int)0x80000000)
    return 0.0;
      else
    return m_data.f;
    }

getL()

unsigned int DecoderFloat_IEEE754::getL ( )

inline

Definition at line 50 of file ErrorMatrixCompressor.h.

    {
      return m_data.l;
    }

getMantissa()

unsigned int DecoderFloat_IEEE754::getMantissa

(

)

Definition at line 54 of file ErrorMatrixCompressor.cxx.

{
  unsigned int mask = 0x007fffff;
  return (m_data.l & mask);
}

print()

void DecoderFloat_IEEE754::print

(

)

Definition at line 24 of file ErrorMatrixCompressor.cxx.

{
  //  printf("0x%X\n",m_data.l);
  unsigned int mask = 0x00000001;
  for(int i=31;i>=0;i--)
    {
      unsigned int m = mask << i;
      //printf("0x%X\n",m);
      if(m_data.l & m) std::cout<<"1";
      else std::cout<<"0";
    }
  std::cout<<std::endl;
  /*
    mask = 0x80000000;
    int sign = (m_data.l & mask) >> 31;
    mask = 0x7f800000;
    short int exponent = (m_data.l & mask) >> 23;
    mask = 0x007fffff;
    unsigned int mant = (m_data.l & mask);
    printf("Sign=0x%X Exponent = 0x%X Mantissa = 0x%X\n",sign,exponent,mant); 
    printf("Sign=%d Exponent = %d Mantissa = %ld\n",sign,exponent,mant);  
  */
}

setExponent()

void DecoderFloat_IEEE754::setExponent

(

short int

ex

)

Definition at line 61 of file ErrorMatrixCompressor.cxx.

{
  unsigned int buf=ex;
  buf=buf<<23;
  unsigned int mask=0x7F800000;
  m_data.l=m_data.l | (buf & mask);
}

setF()

void DecoderFloat_IEEE754::setF ( float f )

inline

Definition at line 35 of file ErrorMatrixCompressor.h.

    {
      m_data.f=f;
    }

setL()

void DecoderFloat_IEEE754::setL ( int l )

inline

Definition at line 46 of file ErrorMatrixCompressor.h.

    {
      m_data.l=l;
    }

setSign()

void DecoderFloat_IEEE754::setSign

(

int

s

)

Definition at line 69 of file ErrorMatrixCompressor.cxx.

{
  if(s>0)
    {
      m_data.l=m_data.l & 0x7FFFFFFF;
    }
  else
    {
      m_data.l=m_data.l | 0x80000000;
    }
}

Member Data Documentation

m_data

FloatLongIntUnion DecoderFloat_IEEE754::m_data

Definition at line 60 of file ErrorMatrixCompressor.h.

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The documentation for this class was generated from the following files:

• ErrorMatrixCompressor.h
• ErrorMatrixCompressor.cxx