Update to latest boost 1.34 svn.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15451 a592a061-630c-0410-9148-cb99ea01b6c8

boost/boost/rational.hpp

@@ -17,6 +17,9 @@
 //    Nickolay Mladenov, for the implementation of operator+=
 
 //  Revision History
+//  20 Oct 06  Fix operator bool_type for CW 8.3 (Joaquín M López Muñoz)
+//  18 Oct 06  Use EXPLICIT_TEMPLATE_TYPE helper macros from Boost.Config
+//             (Joaquín M López Muñoz)
 //  27 Dec 05  Add Boolean conversion operator (Daryle Walker)
 //  28 Sep 02  Use _left versions of operators from operators.hpp
 //  05 Jul 01  Recode gcd(), avoiding std::swap (Helmut Zeisel)
@@ -48,6 +51,7 @@
 #include <cstdlib>               // for std::abs
 #include <boost/call_traits.hpp> // for boost::call_traits
 #include <boost/config.hpp>      // for BOOST_NO_STDC_NAMESPACE, BOOST_MSVC
+#include <boost/detail/workaround.hpp> // for BOOST_WORKAROUND
 
 namespace boost {
 
@@ -171,8 +175,20 @@ public:
     bool operator!() const { return !num; }
 
     // Boolean conversion
+    
+#if BOOST_WORKAROUND(__MWERKS__,<=0x3003)
+    // The "ISO C++ Template Parser" option in CW 8.3 chokes on the
+    // following, hence we selectively disable that option for the
+    // offending memfun.
+#pragma parse_mfunc_templ off
+#endif
+
     operator bool_type() const { return operator !() ? 0 : &helper::parts; }
 
+#if BOOST_WORKAROUND(__MWERKS__,<=0x3003)
+#pragma parse_mfunc_templ reset
+#endif
+
     // Comparison operators
     bool operator< (const rational& r) const;
     bool operator== (const rational& r) const;
@@ -508,7 +524,8 @@ std::ostream& operator<< (std::ostream& os, const rational<IntType>& r)
 
 // Type conversion
 template <typename T, typename IntType>
-inline T rational_cast(const rational<IntType>& src)
+inline T rational_cast(
+    const rational<IntType>& src BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(T))
 {
     return static_cast<T>(src.numerator())/src.denominator();
 }

boost/boost/regex/v4/perl_matcher.hpp

@@ -427,9 +427,9 @@ private:
    // matching flags in use:
    match_flag_type m_match_flags;
    // how many states we have examined so far:
-   difference_type state_count;
+   boost::uintmax_t state_count;
    // max number of states to examine before giving up:
-   difference_type max_state_count;
+   boost::uintmax_t max_state_count;
    // whether we should ignore case or not:
    bool icase;
    // set to true when (position == last), indicates that we may have a partial match:

boost/boost/regex/v4/perl_matcher_common.hpp

@@ -77,15 +77,67 @@ void perl_matcher<BidiIterator, Allocator, traits>::construct_init(const basic_r
 template <class BidiIterator, class Allocator, class traits>
 void perl_matcher<BidiIterator, Allocator, traits>::estimate_max_state_count(std::random_access_iterator_tag*)
 {
-   static const difference_type k = 100000;
-   difference_type dist = boost::re_detail::distance(base, last);
-   traits_size_type states = static_cast<traits_size_type>(re.size());
+   //
+   // How many states should we allow our machine to visit before giving up?
+   // This is a heuristic: it takes the greater of O(N^2) and O(NS^2)
+   // where N is the length of the string, and S is the number of states
+   // in the machine.  It's tempting to up this to O(N^2S) or even O(N^2S^2)
+   // but these take unreasonably amounts of time to bale out in pathological
+   // cases.
+   //
+   // Calculate NS^2 first:
+   //
+   static const boost::uintmax_t k = 100000;
+   boost::uintmax_t dist = boost::re_detail::distance(base, last);
+   if(dist == 0)
+      dist = 1;
+   boost::uintmax_t states = re.size();
+   if(states == 0)
+      states = 1;
    states *= states;
-   difference_type lim = ((std::numeric_limits<difference_type>::max)() - k) / states;
-   if(dist >= lim)
-      max_state_count = (std::numeric_limits<difference_type>::max)();
-   else
-      max_state_count = k + states * dist;
+   if((std::numeric_limits<boost::uintmax_t>::max)() / dist < states)
+   {
+      max_state_count = (std::numeric_limits<boost::uintmax_t>::max)() - 2;
+      return;
+   }
+   states *= dist;
+   if((std::numeric_limits<boost::uintmax_t>::max)() - k < states)
+   {
+      max_state_count = (std::numeric_limits<boost::uintmax_t>::max)() - 2;
+      return;
+   }
+   states += k;
+
+   max_state_count = states;
+
+   //
+   // Now calculate N^2:
+   //
+   states = dist;
+   if((std::numeric_limits<boost::uintmax_t>::max)() / dist < states)
+   {
+      max_state_count = (std::numeric_limits<boost::uintmax_t>::max)() - 2;
+      return;
+   }
+   states *= dist;
+   if((std::numeric_limits<boost::uintmax_t>::max)() - k < states)
+   {
+      max_state_count = (std::numeric_limits<boost::uintmax_t>::max)() - 2;
+      return;
+   }
+   states += k;
+   //
+   // N^2 can be a very large number indeed, to prevent things getting out
+   // of control, cap the max states:
+   //
+   if(states > BOOST_REGEX_MAX_STATE_COUNT)
+      states = BOOST_REGEX_MAX_STATE_COUNT;
+   //
+   // If (the possibly capped) N^2 is larger than our first estimate,
+   // use this instead:
+   //
+   if(states > max_state_count)
+      max_state_count = states;
 }
 
 template <class BidiIterator, class Allocator, class traits>