Precision error in double

[coolhuds]

Hi,

A large double value gets changed when printed with %Lf
Values upto the following combination gives proper results
9 digits before decimal / 6 digits after decimal
e.g. of a value with 9 digits before decimal printed with %Lf
Input : 3435537287.32
Output : 3435537287.320000

Once I increase the digits before decimal to 10, the values printed with %Lf 
adds garbage value.
e.g. of a value with 10 digits before decimal printed with %Lf
Input : 34355372871.3487
Output : 34355372871.348701
As you can see from the above output the input value is changed.

Is there any compile time option for g++ that can be used so that the value 
is'nt changed?

::Code Snippet::
double d2 =  34355372871.3487;
double d4 =  3435537287.3487;

printf("d2 = %lf\n", d2);
printf("d4 = %lf\n", d4);


Thanks,
Hudson