Added check for BOOST_NO_STD_DISTANCE

[SVN r16144]
2002-11-07 12:59:57 +00:00
parent cf285ed3e5
commit b6a13dd215
1 changed files with 4 additions and 0 deletions
--- a/include/boost/regex/v3/regex_match.hpp
+++ b/include/boost/regex/v3/regex_match.hpp
@ -213,7 +213,11 @@ public:
   }
   void estimate_max_state_count(iterator a, iterator b, std::size_t states, std::random_access_iterator_tag*)
   {
+#ifndef BOOST_NO_STD_DISTANCE
      difference_type dist = std::distance(a,b);
+#else
+      difference_type dist = b - a;
+#endif
      states *= states;
      difference_type lim = std::numeric_limits<difference_type>::max() - 1000 - states;
      if(dist > (difference_type)(lim / states))