# Miscellaneous Functions

## `type-of`
```
(type-of value)
```
`type-of` returns an atom indicating the type of `value`, or nil if
`value` is nil.

## `addr-of`
```
(addr-of value)
```
`addr-of` returns the raw immediate value of its argument as an int. For
conses, strings, and funptrs, this is their memory address (hence the
name). For ints, floats, and atoms, this returns their raw bytes
interpreted as a signed 2's-complement integer.

## `set`
```
(set atom value)
```
`set` changes the value associated with `atom` in syms-alist, or creates
the association if it does not already exist. It returns `value`.

## `fun`
```
(fun atom)
```
`fun` returns the function associated with `atom` in funs-alist, or nil
if no such function exists.