problem with for loop

[jorhen]

hi!! can anybody explain what does this loop does,,

for(!cin)
break;

thanks..

[guestgulkan]

That's nonsense.
Are you sure that it isn't if (!cin) ??

[CAIA]

Please note that all for loops begin with the keyword for

After the keyword for you must address three separate statements within parentheses:
- An initialization statement
- A Boolean test expression
- An increment/decrement statement.

Compare this to what you have written, maybe this might help.