[racket] How to read procedure documentation?

From: Matthias Felleisen (matthias at ccs.neu.edu)
Date: Sat Apr 20 10:19:54 EDT 2013

On Apr 20, 2013, at 12:37 AM, Manfred Lotz wrote:

> My understanding is that parameter path-string? will be
> checked at run time but only if the programmer who coded e.g.
> file->string did call path-string?. 

No, the function will check pathness. Try file->string with a string that contains \0. 

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