string parsing to double fails in C++
- by helixed
Here's a fun one I've been trying to figure out. I have the following program:
#include <iostream>
#include <string>
#include <sstream>
using namespace std;
int main(int argc, char *argv[])
{
string s("5");
istringstream stream(s);
double theValue;
stream >> theValue;
cout << theValue << endl;
cout << stream.fail();
}
The output is:
0
1
I don't understand why this is failing. Could somebody please tell me what I'm doing wrong?
Thanks,
helixed
