c++ - Setting Bit from Dynamic Array and Then Displaying it -

i have constructor creates bitarray object, asks user how many 'bits' use. uses unsigned chars store bytes needed hold many. wish create methods allow user 'set' bit, , display full set of bytes @ end. however, set method not seem changing bit, that, or print function (the overload) not seem printing actual bit(s). can point out problem please?

constructor

bitarray::bitarray(unsigned int n) {  //now let's find minimum 'bits' needed  n++; //if not "perfectly" fit //------------------------------------ehhhh if( (n % byte) != 0)     arraysize =(n / byte); else     arraysize = (n / byte) + 1;  //now dynamically create array full byte size barray = new unsigned char[arraysize];  //now intialize bytes 0 for(int = 0; < arraysize; i++) {     barray[i] = (int) 0; }  } 

set method:

    void bitarray::set(unsigned int index) {         //set indexed bit on         barray[index/byte] |= 0x01 << (index%byte); } 

print overload:

 ostream &operator<<(ostream& os, const bitarray& a) {           for(int = 0; < (a.length()*byte+1); i++)         {             int curnum = i/byte;             char chartoprint = a.barray[curnum];             os << (chartoprint & 0x01);             chartoprint >>= 1;         }     return os; } 

    for(int = 0; < (a.length()*byte+1); i++)     {         int curnum = i/byte;         char chartoprint = a.barray[curnum];         os << (chartoprint & 0x01);         chartoprint >>= 1;     } 

each time run loop, fetching new value chartoprint. means operation chartoprint >>= 1; useless, since modification not going carried out next time loop runs. therefore, print first bit of each char of array.