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[Bug libstdc++/28277] __builtin_alloca with no limit in libstdc++



------- Comment #6 from pcarlini at suse dot de  2006-07-05 22:48 -------
(In reply to comment #5)
> The threads point is just a basic stack size issue: threads on linux have a
> fixed size which is often smaller than the main stack size limit.

Ok then.

> With an output width of 60 million, it's easy to see a failure, even on a main
> stack.
> 
> hollerith:~/exp-string-width$ ulimit -Ss
> 8192
> hollerith:~/exp-string-width$ /home/mec/gcc-4.2-20060624/install/bin/g++ z1.cc
> hollerith:~/exp-string-width$ a.out > /dev/null
> Segmentation fault

Note, in general, I guess we are often going to fail anyway (at least for some
of the pointed out uses) only, throwing a bad_alloc exception instead of
seg-faulting, I hope that is acceptable...


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28277


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