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Added check for invalid regular expression in matching code.

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[SVN r18777]
This commit is contained in:
John Maddock
2003-06-11 12:11:17 +00:00
parent 13769e4fff
commit ed48905c5e
1 changed files with 7 additions and 1 deletions
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6
include/boost/regex/v4/perl_matcher_common.hpp
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@ -42,6 +42,12 @@ perl_matcher<BidiIterator, Allocator, traits, Allocator2>::perl_matcher(BidiIter
{ {
typedef typename regex_iterator_traits<BidiIterator>::iterator_category category; typedef typename regex_iterator_traits<BidiIterator>::iterator_category category;
if(e.empty())
{
// precondition failure: e is not a valid regex.
std::invalid_argument ex("Invalid regular expression object");
boost::throw_exception(ex);
}
pstate = 0; pstate = 0;
m_match_flags = f; m_match_flags = f;
icase = re.flags() & regex_constants::icase; icase = re.flags() & regex_constants::icase;