toInt64 method
Zero-extending widen, then reinterpret — always non-negative and exact, since a 32-bit magnitude always fits in a positive Int64.
Implementation
Int64 toInt64() => toUint64().toInt64();
Zero-extending widen, then reinterpret — always non-negative and exact, since a 32-bit magnitude always fits in a positive Int64.
Int64 toInt64() => toUint64().toInt64();