[Boost-commit] svn:boost r62548 - trunk/boost/random

Subject: [Boost-commit] svn:boost r62548 - trunk/boost/random
From: steven_at_[hidden]
Date: 2010-06-08 00:03:59

Author: steven_watanabe
Date: 2010-06-08 00:03:58 EDT (Tue, 08 Jun 2010)
New Revision: 62548
URL: http://svn.boost.org/trac/boost/changeset/62548

Log:
Check for range errors in the input operator of linear_congruential.  Fixes #2667
Text files modified: 
   trunk/boost/random/linear_congruential.hpp |    10 +++++++++-                              
   1 files changed, 9 insertions(+), 1 deletions(-)

Modified: trunk/boost/random/linear_congruential.hpp
==============================================================================
--- trunk/boost/random/linear_congruential.hpp	(original)
+++ trunk/boost/random/linear_congruential.hpp	2010-06-08 00:03:58 EDT (Tue, 08 Jun 2010)
@@ -193,7 +193,15 @@
   operator>>(std::basic_istream<CharT,Traits>& is,
              linear_congruential& lcg)
   {
-    return is >> lcg._x;
+    IntType x;
+    if(is >> x) {
+      if(x >= (lcg.min)() && x <= (lcg.max)()) {
+        lcg._x = x;
+      } else {
+        is.setstate(std::ios_base::failbit);
+      }
+    }
+    return is;
   }
  
 private: