How to extract mixed format using istringstream

Question

Why does my program not output:

10
1.546
,Apple 1

instead of

10
1

here\'s my program

Answer 1

You should do the below changes:

string str = "10  1.546 Apple 1";

And

 stream >> a >> b >> dummy >> c;

In your example, dummy would have got the string ",1.546,Apple" . Because till a non-numeric char is encountered, it is fed to variable a. After that everything is added to dummy ( a string ) until the default delimiter (space) is reached