int AbstractNumberModel<T>::decompressBeforeAfter(BinaryCode& code, string& beforeAfter) const{
if(code.finish())
return -1;
bool mark = code.getFirstBitMoveToNext();
if(mark){
return dictModelPtr->decompressWord(code, beforeAfter);
} else{
beforeAfter = "";
return 0;
}
}
int GammaEncoder::decode(BinaryCode& code, unsigned int& num) const{
unsigned int len;
int ret = unary.decode(code, len);
if(ret == -1)
return -1;
unsigned int remaining = len - 1;
num = 1;
if(code.remainSize() < remaining)
return -1;
for(unsigned int i = 0; i < remaining; i++){
num = (num << 1) + code.getFirstBitMoveToNext();
}
return 0;
}