<p>Is there a native c++ variable type that's "bigger" than a double?<br>
float is 7<br>
double is 15  (of course depending on the compiler)<br>
Is there anything bigger that's native, or even non-native?</p>

C++ has
```
long double
```
, but there is no guarantee that it's any more precise than a plain
```
double
```
. On an x86 platform, usually
```
double
```
is 64 bits, and
```
long double
```
is either 64 or 80 bits (which gives you 19 significant figures, if I remember right).
Your mileage may vary, especially if you're not on x86.