c++ - '=' AND '!=' operator overloading problem -

okay, evil compiler keeps rejecting '=' , '!=' overloaded operators (i think) both polynomial , rational classes. appreciated.

using namespace std;  class polynomial {  public:  //constructor polynomial()      {         ( int = 0; < 100; i++ )     {         coefficient[i] = 0;     }     }  ~polynomial(){}  void polynomialset ( rational , int b ) //polynomialsetter function     {       coefficient[b] = a;     exponent = b; }      . . . .       const polynomial &polynomial::operator=(const polynomial &a) {     if (&a == this)         return *this; }  bool polynomial::operator!=(polynomial &a) {            return !(*this == a);     }  *************************************************************************** using namespace std;  class rational {  public: //constructors  rational (int a, int b) { //rational( const int &a, const int &b){     if (a != 0)     {         if (b != 0)         {             this->numerator = a;             this->denominator = b;         }     } }  rational(){}  ~rational() {}      . . . .      bool rational::operator!=(rational a) {     return (a.numerator != numerator) && (a.denominator != denominator); }  rational rational::operator =(const rational &a) {     this->numerator = a.numerator;     this->denominator = a.denominator;     return *this; } 

here 3 error messages:

polynomial.h(35) : error c2679: binary '=' : no operator found takes right-hand operand of type 'int' (or there no acceptable conversion) rational.h(99): 'rational rational::operator =(const rational &)' while trying match argument list '(rational, int)'  polynomial.h(53) : error c2679: binary '!=' : no operator found takes   right-hand operand of type 'int' (or there no acceptable conversion) rational.h(94): 'bool rational::operator !=(rational)' while trying match argument list '(rational, int)'  polynomial.h(63) : error c2679: binary '!=' : no operator found takes right-hand operand of type 'int' (or there no acceptable conversion) rational.h(94): 'bool rational::operator !=(rational)' while trying match argument list '(rational, int)'  ========== build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== 

help???

try reading error messages?

binary '=' .... right-hand operand of type 'int' .... while trying match argument list '(rational, int)' 

both operator = implementations can see take rational& or polynomial& none take int. being said there information missing question.

binary '!=' .... right-hand operand of type 'int' .... hile trying match argument list '(rational, int)' 

same problem.

all aside, operator = assignment operator... operator == boolean equality. can see of code looks have 2 mixed up. fixing alone set on way solution.