:sig
s64 DValue::to_s64(s64 default_value = 0) const

:params
s64 : fallback returned when conversion is not possible
return value : converted value or the fallback

:see
0_DValue
2_DValue_get_by_path

:content
Converts strings, f64, bool, pointer, and single-value maps to a signed integer. Invalid or empty strings return the default. Values outside the signed range are clamped.

```cpp
s64 count = cfg.get_by_path("limits/count").to_s64(10);
```