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bug#18410: Use SAFE_ALLOCA etc. to avoid unbounded stack allocation.
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From: |
Stefan Monnier |
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Subject: |
bug#18410: Use SAFE_ALLOCA etc. to avoid unbounded stack allocation. |
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Date: |
Fri, 05 Sep 2014 13:22:21 -0400 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux) |
>> Lisp_Object result = unbind_to (count, Fsome_func ());
>> can always be written
>> Lisp_Object result = Fsome_func ();
>> unbind_to (count, Qnil);
> Only if the result is already protected, since unbind_to can GC.
Indeed, if you need GCPRO, then it's not necessarily true any more.
Stefan