Returns the least significant `width`

bits of this big integer as a non-negative number (i.e. unsigned representation). The returned value has zeros in all bit positions higher than `width`

.

new BigInt.from(-1).toUnsigned(5) == 31 // 11111111 -> 00011111

This operation can be used to simulate arithmetic from low level languages. For example, to increment an 8 bit quantity:

q = (q + 1).toUnsigned(8);

`q`

will count from `0`

up to `255`

and then wrap around to `0`

.

If the input fits in `width`

bits without truncation, the result is the same as the input. The minimum width needed to avoid truncation of `x`

is given by `x.bitLength`

, i.e.

x == x.toUnsigned(x.bitLength);

BigInt toUnsigned(int width);

© 2012 the Dart project authors

Licensed under the Creative Commons Attribution-ShareAlike License v4.0.

https://api.dart.dev/stable/2.5.0/dart-core/BigInt/toUnsigned.html