# Reference · PP

Reference for the **pp runtime** (a native Rust interpreter,
selected with `--pp`). See the [how-to guide](../howto) for
when to choose between p5 and pp.

## Core

```{toctree}
:maxdepth: 1

core/perlfunc
```

## Modules

```{toctree}
:maxdepth: 1

Config
Cwd
Data/Dumper
Digest/MD5
Digest/SHA
Encode
Errno
File/Basename
File/Copy
File/Find
File/Glob
File/Path
File/Spec
File/Temp
File/stat
FileHandle
Hash/Util
IO/Dir
IO/File
IO/Handle
IO/Pipe
IO/Seekable
IO/Select
IO/Socket
Internals
List/Util
MIME/Base64
MIME/QuotedPrint
Math/GMP
POSIX
PadWalker
Peta/FFI
Scalar/Util
Socket
Storable
Sub/Util
Sys/Hostname
Time/HiRes
mro
version
```