WrapperInts

WrapperInts is a class in the Go programming language designed to provide a mutable integer type. Unlike the built-in `int` type, which is immutable, instances of WrapperInts can have their underlying integer value changed after creation. This is achieved by storing the integer as a pointer within the WrapperInts struct.

The primary purpose of WrapperInts is to allow functions to modify an integer passed as an argument. In Go, function arguments are passed by value, meaning that changes made to a parameter within a function do not affect the original variable outside of that function. By passing a pointer to a WrapperInts instance, a function can dereference the pointer and modify the value stored within the WrapperInts object, thereby affecting the original variable.

WrapperInts typically includes methods to get and set the integer value. A common pattern is a `Value()` method to retrieve the current integer and a `Set(newValue int)` method to update it. This encapsulation allows for controlled access and modification of the integer.

While not a fundamental part of the Go language itself, WrapperInts is a useful utility that can be implemented or found in various libraries. It addresses a specific need for mutability in scenarios where Go's pass-by-value semantics would otherwise prevent direct modification of integer variables from within functions. Developers might employ WrapperInts when building certain data structures or algorithms that require in-place updates of integer fields.