diff -Naur boost_1_50_0_beta1/libs/date_time/src/gregorian/date_generators.cpp boost_1_50_0_beta1_patch/libs/date_time/src/gregorian/date_generators.cpp
--- boost_1_50_0_beta1/libs/date_time/src/gregorian/date_generators.cpp	2008-02-28 01:30:24.000000000 +0530
+++ boost_1_50_0_beta1_patch/libs/date_time/src/gregorian/date_generators.cpp	2012-06-25 12:27:16.000000000 +0530
@@ -22,7 +22,7 @@
   //! Returns nth arg as string. 1 -> "first", 2 -> "second", max is 5.
   BOOST_DATE_TIME_DECL const char* nth_as_str(int ele)
   {
-    if(ele >= 1 || ele <= 5) {
+    if(ele >= 1 && ele <= 5) {
       return _nth_as_str[ele];
     } 
     else {