(C++) std::istringstream

std::istringstream is an STL input stream data type.

Example: IsDouble

The example below shows how to check if a std::string can be converted to double: put the std::string in an std::istringstream and try to write it to a double. If this fails, the std::string cannot be converted to double.


#include <cassert>

#include <sstream>



//From http://www.richelbilderbeek.nl/CppIsDouble.htm

bool IsDouble(const std::string& s)

{

  std::istringstream i(s);

  double temp;

  return ( (i >> temp) ? true : false );

}

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