Reference: PLT Scheme

1`` | Language Model
2`` | Syntactic Forms
3`` | Datatypes
4`` | Structures
5`` | Classes and Objects
6`` | Units
7`` | Contracts
8`` | Pattern Matching
9`` | Control Flow
10`` | Concurrency
11`` | Macros
12`` | Input and Output
13`` | Reflection and Security
14`` | Operating System
15`` | Memory Management
16`` | Running PLT Scheme
| Bibliography
| Index

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exit
exit-handler

Version: 4.0.2
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#### 9.7`` Exiting

(exit [v]) → any
v : any/c = #t

Passes v to the current exit handler. If the exit handler does not escape or terminate the thread, #<void> is returned.

(exit-handler) → (any/c . -> . any)
(exit-handler proc) → void?
proc : (any/c . -> . any)

A parameter that determines the current exit handler. The exit handler is called by exit.

The default exit handler in the mzscheme executable takes any argument and shuts down the OS-level Scheme process. The argument is used as the OS-level exit code if it is an exact integer between 1 and 255 (which normally means “failure”); otherwise, the exit code is 0, (which normally means “success”).

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