bug#16999: calc crashes when computation limit is increased

[Dmitry Antipov]

On 03/13/2014 09:13 AM, Dmitry Antipov wrote:

> Perhaps there should be a kind of protection against this. For example,
> eval_sub can check current stack depth against getrlimit (RLIMIT_STACK,...).

This is rather simple on general *NIX. But:

1) it should be implemented for MS-Windows and OSX too if we really need this;
2) Linux has prlimit to tweak limits of another process at run time,
   so actual limit should be checked each time eval_sub is called, thus
   introducing a (minor?) slowdown.

Dmitry

error_if_c_stack_overflow.patch
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