## IConvertible::ToDouble method


Converts the value of this instance to an equivalent double-precision floating-point number using the specified culture-specific formatting information..

```cpp
virtual double System::IConvertible::ToDouble(System::SharedPtr<System::IFormatProvider> provider)=0
```


| Parameter | Type | Description |
| --- | --- | --- |
| provider | System::SharedPtr\<System::IFormatProvider\> | A [System::IFormatProvider](../../iformatprovider/) interface implementation that supplies culture-specific formatting information. |

### ReturnValue

A double-precision floating-point number equivalent to the value of this instance.

## See Also

* Typedef [SharedPtr](../../sharedptr/)
* Class [IFormatProvider](../../iformatprovider/)
* Class [IConvertible](../)
* Namespace [System](../../)
* Library [Aspose.PDF for C++](../../../)