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bifstream.cpp
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bifstream.cpp
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#include "bifstream.h"
#include <iostream>
bifstream::bifstream()
{
lastByteRead = 0;
bitPosition = -1;
}
bifstream::~bifstream()
{
this->close();
}
void bifstream::open(const char *filePath)
{
file.open(filePath, std::ios_base::in | std::ios_base::binary);
}
void bifstream::close()
{
file.close();
}
bool bifstream::good()
{
return file.good();
}
bool bifstream::eof()
{
return file.eof();
}
void bifstream::clear()
{
file.clear();
}
bool bifstream::fail()
{
return file.fail();
}
bool bifstream::get()
{
if (bitPosition < 0)
{
bool b = file.fail();
lastByteRead = file.get();
bitPosition = 7;
}
unsigned char shiftedByte = lastByteRead >> bitPosition;
bitPosition--;
return (shiftedByte & 0x01) == 1;
}
std::vector<bool> bifstream::get(int bytes)
{
std::vector<bool> bitset;
for (int i = 0; i < bytes; i++)
{
bitset.push_back(get());
}
return bitset;
}
unsigned char bifstream::getByte()
{
unsigned char c = 0x00;
for (int i = 0; i < 8; i++)
{
if (get())
{
c |= (0x80 >> i);
}
}
return c;
}