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  1. #include <iostream>
  2. #include <float.h>
  3. #include <string>
  4. #include <sstream>
  5. using namespace std;
  6.  
  7. inline double convertToDouble(std::string const& s)
  8. {
  9.   std::istringstream i(s);
  10.   double x;
  11.   if (!(i >> x)){
  12.     //throw BadConversion("convertToDouble(\"" + s + "\")");
  13.     cout <<"blad";
  14.   }
  15.   return x;
  16. }
  17.  
  18. size_t jakDlugiDouble() {
  19. 	string sDouble = to_string(DBL_MAX);
  20. 	return sDouble.size();
  21. }
  22.  
  23.  
  24. double czyLiczba () {
  25.   string sLiczba = "";
  26.   cin >> sLiczba;
  27.   if (sLiczba.size() > jakDlugiDouble()) {
  28.   	//throw TooLongNumber("convertToDouble(\"" + s + "\")");
  29.   }
  30.   return convertToDouble(sLiczba);
  31. }
  32.  
  33.  
  34. int main() {
  35. 	cout.setf(ios::fixed, ios::floatfield);
  36. 	cout.setf(ios::showpoint);
  37. 	//while(cin) {
  38. 	   double liczba = czyLiczba();
  39. 	   cout << ' ' << liczba<<endl;
  40.    // }
  41. 	return 0;
  42. }
Success #stdin #stdout 0s 3480KB
comments ()
stdin 
123.@32
stdout 
 123.000000
https://ideone.com/dc34Oo
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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