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  1. #include <iostream>
  2. #include <sstream>
  3.  
  4. using namespace std;
  5.  
  6.     struct chlit
  7.     {
  8.     	chlit(char c) : c_(c) { }
  9.         friend std::istream& operator>>(std::istream& is, chlit x)
  10.         {
  11.         	char c;
  12.         	if (is >> c && c != x.c_)
  13.         	    is.setstate(std::iostream::failbit);
  14.         	return is;
  15.         }
  16.         char c_;
  17.     };
  18.  
  19. int main()
  20. {
  21. 	std::istringstream iss("(12, -34.78)");
  22. 	int a; double b;
  23. 	if (iss >> chlit('(') >> a >> chlit(',') >> b >> chlit(')'))
  24. 	    std::cout << " a=" << a << " b=" << b << '\n';
  25. }
Success #stdin #stdout 0s 3460KB
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Standard input is empty
stdout
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 a=12 b=-34.78
https://ideone.com/wqosyc
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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