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Text File  |  1992-05-06  |  128b  |  10 lines
  1. istream &operator>>(istream &is, rational &r)
  2.     {
  3.     long n, d;
  4.     if (is >> n >> d)
  5.         r = rational(n, d);
  6.     return is;
  7.     }
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