avoid automatic round of

[Rajkarthick]

I have a double variable with large value if I print that, it show like this
10000000000000000, how to avoid the automatic round off please help me

int main () {
double f = 9999999999999999.9999;
cout <<f;
return 0;
}

[RadWayne]

I'm not sure how many digits you can store but you might try a long double.

You might also look into the difference between int and float and then look into unsigned long long int.

[Rajkarthick]

i want to store( 20,4 )

[MiiNiPaa]

double have about 15 decimal digits of precision
long double have about 18.

You will be better with storing whole and fractional parts in different variables.