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bug#24884: Segfault on (mkstemp! "XX" 0)

From: Andy Wingo
Subject: bug#24884: Segfault on (mkstemp! "XX" 0)
Date: Wed, 11 Jan 2017 22:33:30 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux)

On Sat 05 Nov 2016 19:16, Jean Louis <address@hidden> writes:

> I was just testing a function, and before I figured out what is
> happening, it is segfaulting on:
> (mkstemp! "XX" 0)
> I don't say, I am using it right. It should not segfault.

I agree.  This is a pending topic in Guile.  (The reason, of course:
mutating literal constants is not valid Scheme.  Guile allocates
some constant literals in read-only memory.  Mutating that memory, or
attempting to do so, segfaults, as you have seen.  We should raise an
error instead.)


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