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  1. #include<stdlib.h>
  2. #include <iostream> // cin, cout, instream, ostream, endl
  3.  
  4.  
  5. using namespace std;
  6.  
  7. class Rationnel
  8. {
  9.       int *num,*den;
  10.       public:
  11.              Rationnel()
  12.              {
  13.               num=new int;
  14.               den=new int;
  15.               (*num)=0;
  16.               (*den)=1;        
  17.              }
  18.              Rationnel(int a,int b)
  19.              {
  20.               num=new int;
  21.               den=new int;
  22.               (*num)=a;
  23.               (*den)=b;        
  24.              }
  25.              Rationnel(Rationnel &R)
  26.              {
  27.               num=new int;
  28.               den=new int;
  29.               num=R.num;
  30.               den=R.den;        
  31.              }
  32.              ~Rationnel(void)
  33.               {
  34.                 delete num;
  35.                 delete den;
  36.               }
  37.               int getnum()
  38.               {
  39.                   return (*num);
  40.               }
  41.               int getden()
  42.               {
  43.                   return (*den);
  44.               }
  45.               void setnum(int a)
  46.               {
  47.                   (*num)=a;
  48.               }
  49.               void setden(int b)
  50.               {
  51.                   (*den)=b;
  52.               }
  53.               float conversion()
  54.               {
  55.                     return (1.0*(*num))/(*den);
  56.               }
  57.               /*friend Rationnel inversion()
  58.               {
  59.                      Rationnel R;
  60.                      int a;
  61.                      //a=(*num);
  62.                      R.setnum(getnum());
  63.                     // a=(*den);
  64.                      R.setden(getden());
  65.                      return R;
  66.               }*/
  67.               ostream &operator<<(ostream &out, const Rationnel &R) {
  68.               return out << R.getnum()<< "/ " << R.getden();
  69.               }
  70.               instream &operator>>(ostream &in, const Rationnel &R) {
  71.               int a
  72.               in>>a;
  73.               R.setnum(a);
  74.               in>>a;
  75.               R.setden(a);
  76.               }
  77. };
  78. void read(Rationnel R)
  79.               {
  80.                    int a;
  81.                    cout<<"numerateur   :";                   
  82.                    cin>>a;
  83.                    R.setnum(a);
  84.                    cout<<"denominateur :";                   
  85.                    cin>>a;
  86.                    R.setden(a);
  87.               }
  88. void print(Rationnel R)
  89. {
  90.      cout<<R.getnum()<<"/"<<R.getden()<<endl;
  91. }
  92. Rationnel add(Rationnel R1,Rationnel R2)
  93. {
  94.           Rationnel R3;
  95.           R3.setnum(R1.getnum()*R2.getden()+R1.getden()*R2.getnum());
  96.           R3.setden(R1.getden()*R2.getden());
  97. }
  98.  
  99. main()
  100. {
  101.  
  102. }
  103.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
prog.cpp:67:67: error: 'std::ostream& Rationnel::operator<<(std::ostream&, const Rationnel&)' must take exactly one argument
               ostream &operator<<(ostream &out, const Rationnel &R) {
                                                                   ^
prog.cpp:70:15: error: 'instream' does not name a type
               instream &operator>>(ostream &in, const Rationnel &R) {
               ^
stdout
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Standard output is empty
https://ideone.com/3TtoMP
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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