Implement the Wrapping type

[pedromfedricci]

Introduces the Wrapping type, analogous to core::num::Wrapping.

The Wrapping type provides intentionally-wrapped arithmetic on Constrained types that it holds. Currently implements: Add, AddAssign, Sub and SubAssign traits for all constrained integers. Implements signum, is_positive, is_negative for signed constrained integers.

The Wrapping type also implements serde's Serialize and Deserialize behind the serde feature flag, if the contained T implements them.

Usage example:

use constrained_int::i8::ConstrainedI8;
use constrained_int::wrapping::Wrapping;

type Value = Wrapping<ConstrainedI8<-20, 42>>;

let mut value = Value::default();
value += 10;
value -= -5;
value: Value = value + value;
assert_eq!(-1, value.signum());

[codecov-commenter]

Codecov Report

Merging #5 (5b7376f) into main (39541d3) will increase coverage by 0.14%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##             main        #5      +/-   ##
===========================================
+ Coverage   99.85%   100.00%   +0.14%     
===========================================
  Files           4         8       +4     
  Lines         689       787      +98     
===========================================
+ Hits          688       787      +99     
+ Misses          1         0       -1     

Impacted Files	Coverage Δ
src/deserialize/macros.rs	100.00% <ø> (ø)
src/macros/common.rs	100.00% <ø> (ø)
src/macros/int.rs	100.00% <ø> (+0.33%)	⬆️
src/macros/uint.rs	100.00% <ø> (ø)
src/macros/refops.rs	100.00% <100.00%> (ø)
src/wrapping/macros/common.rs	100.00% <100.00%> (ø)
src/wrapping/macros/int.rs	100.00% <100.00%> (ø)
src/wrapping/mod.rs	100.00% <100.00%> (ø)

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.