I recently take a look at my old code and i can't figure out what this option, if it's really an option, do.
the code is something like:
map<string, string> map;
map[string1] = ("s", string2);
Comma is operator, that evaluates arguments from left to right, and has value of most-right element.
int a=2, b=3, c; c = (a+=b, a*b);
So, from left,
a+=b is evaulated first, which sets
a*b is evaulated, and expression has value of
5*3, which value is used. So