Hi,
On 06/27/2014 05:56 AM, Tim Shen wrote:
The limit can be customized by defining a macro
_GLIBCXX_REGEX_STATE_LIMIT. The default value is 100000.
The testcase can be handled if we optimize consecutive quantifiers
(collapse them to one). But cases like "(a{100}b){100}" can't be
handled still.
We implement range quantifier "(foo){n}" by copying state sequence
(foo) n-1 times. That consumes more space. We may reimplement it (by
adding a new _S_op*) someday.
Bootstrapped and tested.
The actual patch is missing.. ;)
Paolo.
PS: sorry for being distracted by other issues: what happened to the
other regex issue? I think we are simply going to apply, when ready,
your more complete fix, right?
