From 3e39d0e02bf58ed7e867f6520ab377d86de94758 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 18 Oct 2010 11:23:11 +0200
Subject: Use default context c-tor

---
 .../parser/validation/built-in/binary/driver.cxx   |  24 +-
 .../parser/validation/built-in/boolean/driver.cxx  |  24 +-
 .../cxx/parser/validation/built-in/byte/driver.cxx |  50 +--
 .../validation/built-in/date-time/driver.cxx       | 350 ++++++++++-----------
 .../parser/validation/built-in/float/driver.cxx    |  54 ++--
 .../cxx/parser/validation/built-in/int/driver.cxx  |  18 +-
 .../parser/validation/built-in/integer/driver.cxx  |  46 +--
 .../validation/built-in/long-long/driver.cxx       |  18 +-
 .../cxx/parser/validation/built-in/long/driver.cxx |  16 +-
 .../parser/validation/built-in/qname/driver.cxx    |  16 +-
 .../parser/validation/built-in/short/driver.cxx    |  18 +-
 .../parser/validation/built-in/string/driver.cxx   |  94 +++---
 .../cxx/parser/validation/built-in/uri/driver.cxx  |   8 +-
 13 files changed, 368 insertions(+), 368 deletions(-)

diff --git a/tests/cxx/parser/validation/built-in/binary/driver.cxx b/tests/cxx/parser/validation/built-in/binary/driver.cxx
index afc1dc2..d37e9b7 100644
--- a/tests/cxx/parser/validation/built-in/binary/driver.cxx
+++ b/tests/cxx/parser/validation/built-in/binary/driver.cxx
@@ -36,7 +36,7 @@ main ()
   // hexBinary
   //
   {
-    context c (0);
+    context c;
     hex_binary_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -48,7 +48,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     hex_binary_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -62,7 +62,7 @@ main ()
   // base64Binary
   //
   {
-    context c (0);
+    context c;
     base64_binary_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -75,7 +75,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     base64_binary_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -86,7 +86,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     base64_binary_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -97,7 +97,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     base64_binary_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -113,7 +113,7 @@ main ()
   // hexBinary
   //
   {
-    context c (0);
+    context c;
     hex_binary_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -123,7 +123,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     hex_binary_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -135,7 +135,7 @@ main ()
   // base64Binary
   //
   {
-    context c (0);
+    context c;
     base64_binary_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -145,7 +145,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     base64_binary_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -155,7 +155,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     base64_binary_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -165,7 +165,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     base64_binary_pimpl p;
     p.pre ();
     p._pre_impl (c);
diff --git a/tests/cxx/parser/validation/built-in/boolean/driver.cxx b/tests/cxx/parser/validation/built-in/boolean/driver.cxx
index a6b6591..a9a1223 100644
--- a/tests/cxx/parser/validation/built-in/boolean/driver.cxx
+++ b/tests/cxx/parser/validation/built-in/boolean/driver.cxx
@@ -18,7 +18,7 @@ main ()
   // Good.
   //
   {
-    context c (0);
+    context c;
     boolean_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -28,7 +28,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     boolean_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -38,7 +38,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     boolean_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -48,7 +48,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     boolean_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -59,7 +59,7 @@ main ()
 
 
   {
-    context c (0);
+    context c;
     boolean_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -69,7 +69,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     boolean_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -87,7 +87,7 @@ main ()
   // Bad
   //
   {
-    context c (0);
+    context c;
     boolean_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -97,7 +97,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     boolean_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -107,7 +107,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     boolean_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -117,7 +117,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     boolean_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -127,7 +127,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     boolean_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -139,7 +139,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     boolean_pimpl p;
     p.pre ();
     p._pre_impl (c);
diff --git a/tests/cxx/parser/validation/built-in/byte/driver.cxx b/tests/cxx/parser/validation/built-in/byte/driver.cxx
index 23d5834..8ffbe37 100644
--- a/tests/cxx/parser/validation/built-in/byte/driver.cxx
+++ b/tests/cxx/parser/validation/built-in/byte/driver.cxx
@@ -19,7 +19,7 @@ main ()
   // Good.
   //
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -29,7 +29,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -39,7 +39,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -49,7 +49,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -59,7 +59,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -69,7 +69,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -79,7 +79,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -89,7 +89,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -103,7 +103,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -113,7 +113,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -123,7 +123,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -133,7 +133,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -143,7 +143,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -155,7 +155,7 @@ main ()
   // Bad
   //
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -165,7 +165,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -175,7 +175,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -185,7 +185,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -195,7 +195,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -205,7 +205,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -215,7 +215,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -225,7 +225,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -237,7 +237,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -249,7 +249,7 @@ main ()
   // Ranges
   //
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -259,7 +259,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -269,7 +269,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_byte_pimpl p;
     p.pre ();
     p._pre_impl (c);
diff --git a/tests/cxx/parser/validation/built-in/date-time/driver.cxx b/tests/cxx/parser/validation/built-in/date-time/driver.cxx
index 3b08f35..b85bf0e 100644
--- a/tests/cxx/parser/validation/built-in/date-time/driver.cxx
+++ b/tests/cxx/parser/validation/built-in/date-time/driver.cxx
@@ -24,7 +24,7 @@ main ()
   // gday & time zone parsing
   //
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -36,7 +36,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -46,7 +46,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -56,7 +56,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -66,7 +66,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -76,7 +76,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -88,7 +88,7 @@ main ()
   // gmonth
   //
   {
-    context c (0);
+    context c;
     gmonth_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -100,7 +100,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -110,7 +110,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -122,7 +122,7 @@ main ()
   // gyear
   //
   {
-    context c (0);
+    context c;
     gyear_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -134,7 +134,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -144,7 +144,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -156,7 +156,7 @@ main ()
   // gmonth_day
   //
   {
-    context c (0);
+    context c;
     gmonth_day_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -168,7 +168,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_day_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -178,7 +178,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_day_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -190,7 +190,7 @@ main ()
   // gyear_month
   //
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -202,7 +202,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -212,7 +212,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -222,7 +222,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -234,7 +234,7 @@ main ()
   // date
   //
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -246,7 +246,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -256,7 +256,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -266,7 +266,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -278,7 +278,7 @@ main ()
   // time
   //
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -290,7 +290,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -300,7 +300,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -312,7 +312,7 @@ main ()
   // date_time
   //
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -325,7 +325,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -335,7 +335,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -346,7 +346,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -358,7 +358,7 @@ main ()
   // duration
   //
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -371,7 +371,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -381,7 +381,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -391,7 +391,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -401,7 +401,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -411,7 +411,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -421,7 +421,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -431,7 +431,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -446,7 +446,7 @@ main ()
   // gday & time zone parsing
   //
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -456,7 +456,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -466,7 +466,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -476,7 +476,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -486,7 +486,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -496,7 +496,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -506,7 +506,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -516,7 +516,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -526,7 +526,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -536,7 +536,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -546,7 +546,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -556,7 +556,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -566,7 +566,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -576,7 +576,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gday_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -588,7 +588,7 @@ main ()
   // gmonth
   //
   {
-    context c (0);
+    context c;
     gmonth_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -598,7 +598,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -608,7 +608,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -618,7 +618,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -628,7 +628,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -638,7 +638,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -650,7 +650,7 @@ main ()
   // gyear
   //
   {
-    context c (0);
+    context c;
     gyear_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -660,7 +660,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -670,7 +670,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -680,7 +680,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -690,7 +690,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -700,7 +700,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -712,7 +712,7 @@ main ()
   // gmonth_day
   //
   {
-    context c (0);
+    context c;
     gmonth_day_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -722,7 +722,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_day_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -732,7 +732,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_day_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -742,7 +742,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_day_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -752,7 +752,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_day_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -762,7 +762,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_day_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -772,7 +772,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_day_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -782,7 +782,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_day_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -792,7 +792,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_day_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -802,7 +802,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_day_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -812,7 +812,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gmonth_day_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -824,7 +824,7 @@ main ()
   // gyear_month
   //
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -834,7 +834,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -844,7 +844,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -854,7 +854,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -864,7 +864,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -874,7 +874,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -884,7 +884,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -894,7 +894,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -904,7 +904,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -914,7 +914,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -924,7 +924,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -934,7 +934,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     gyear_month_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -946,7 +946,7 @@ main ()
   // date
   //
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -956,7 +956,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -966,7 +966,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -976,7 +976,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -986,7 +986,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -996,7 +996,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1006,7 +1006,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1016,7 +1016,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1026,7 +1026,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1036,7 +1036,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1046,7 +1046,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1056,7 +1056,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1066,7 +1066,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1076,7 +1076,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1086,7 +1086,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1096,7 +1096,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1106,7 +1106,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1116,7 +1116,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1126,7 +1126,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1138,7 +1138,7 @@ main ()
   // time
   //
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1148,7 +1148,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1158,7 +1158,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1168,7 +1168,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1178,7 +1178,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1188,7 +1188,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1198,7 +1198,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1208,7 +1208,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1218,7 +1218,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1228,7 +1228,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1238,7 +1238,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1248,7 +1248,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1258,7 +1258,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1268,7 +1268,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1278,7 +1278,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1288,7 +1288,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1298,7 +1298,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1308,7 +1308,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1320,7 +1320,7 @@ main ()
   // date_time
   //
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1330,7 +1330,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1340,7 +1340,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1350,7 +1350,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1360,7 +1360,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1370,7 +1370,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1380,7 +1380,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1390,7 +1390,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1400,7 +1400,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1410,7 +1410,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1420,7 +1420,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1430,7 +1430,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1440,7 +1440,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1450,7 +1450,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1460,7 +1460,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1470,7 +1470,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1480,7 +1480,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1490,7 +1490,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1500,7 +1500,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1510,7 +1510,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1520,7 +1520,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1530,7 +1530,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1540,7 +1540,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1550,7 +1550,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1560,7 +1560,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1570,7 +1570,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1580,7 +1580,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1590,7 +1590,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1600,7 +1600,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1610,7 +1610,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1620,7 +1620,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1630,7 +1630,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1640,7 +1640,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1650,7 +1650,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1660,7 +1660,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1670,7 +1670,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     date_time_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1682,7 +1682,7 @@ main ()
   // duration
   //
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1692,7 +1692,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1702,7 +1702,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1712,7 +1712,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1722,7 +1722,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1732,7 +1732,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1742,7 +1742,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1752,7 +1752,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1762,7 +1762,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1772,7 +1772,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1782,7 +1782,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1792,7 +1792,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1802,7 +1802,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1812,7 +1812,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -1822,7 +1822,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     duration_pimpl p;
     p.pre ();
     p._pre_impl (c);
diff --git a/tests/cxx/parser/validation/built-in/float/driver.cxx b/tests/cxx/parser/validation/built-in/float/driver.cxx
index 77e4d1b..ff27ee2 100644
--- a/tests/cxx/parser/validation/built-in/float/driver.cxx
+++ b/tests/cxx/parser/validation/built-in/float/driver.cxx
@@ -24,7 +24,7 @@ main ()
   // float
   //
   {
-    context c (0);
+    context c;
     float_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -34,7 +34,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     float_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -44,7 +44,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     float_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -54,7 +54,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     float_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -64,7 +64,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     float_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -74,7 +74,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     float_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -84,7 +84,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     float_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -96,7 +96,7 @@ main ()
   // double
   //
   {
-    context c (0);
+    context c;
     double_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -106,7 +106,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     double_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -116,7 +116,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     double_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -126,7 +126,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     double_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -136,7 +136,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     double_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -146,7 +146,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     double_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -156,7 +156,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     double_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -168,7 +168,7 @@ main ()
   // decimal
   //
   {
-    context c (0);
+    context c;
     decimal_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -178,7 +178,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     decimal_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -188,7 +188,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     decimal_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -198,7 +198,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     decimal_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -214,7 +214,7 @@ main ()
   // float
   //
   {
-    context c (0);
+    context c;
     float_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -224,7 +224,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     float_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -236,7 +236,7 @@ main ()
   // double
   //
   {
-    context c (0);
+    context c;
     double_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -246,7 +246,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     double_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -258,7 +258,7 @@ main ()
   // decimal
   //
   {
-    context c (0);
+    context c;
     decimal_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -268,7 +268,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     decimal_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -278,7 +278,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     decimal_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -288,7 +288,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     decimal_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -298,7 +298,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     decimal_pimpl p;
     p.pre ();
     p._pre_impl (c);
diff --git a/tests/cxx/parser/validation/built-in/int/driver.cxx b/tests/cxx/parser/validation/built-in/int/driver.cxx
index bb20c58..0ff644d 100644
--- a/tests/cxx/parser/validation/built-in/int/driver.cxx
+++ b/tests/cxx/parser/validation/built-in/int/driver.cxx
@@ -19,7 +19,7 @@ main ()
   // Good.
   //
   {
-    context c (0);
+    context c;
     int_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -29,7 +29,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     int_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -39,7 +39,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     int_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -49,7 +49,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_int_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -59,7 +59,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_int_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -72,7 +72,7 @@ main ()
   //
 
   {
-    context c (0);
+    context c;
     unsigned_int_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -85,7 +85,7 @@ main ()
   // Ranges
   //
   {
-    context c (0);
+    context c;
     int_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -95,7 +95,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     int_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -105,7 +105,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_int_pimpl p;
     p.pre ();
     p._pre_impl (c);
diff --git a/tests/cxx/parser/validation/built-in/integer/driver.cxx b/tests/cxx/parser/validation/built-in/integer/driver.cxx
index 52b7d4c..732ab16 100644
--- a/tests/cxx/parser/validation/built-in/integer/driver.cxx
+++ b/tests/cxx/parser/validation/built-in/integer/driver.cxx
@@ -52,7 +52,7 @@ main ()
   // integer
   //
   {
-    context c (0);
+    context c;
     integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -62,7 +62,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -72,7 +72,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -84,7 +84,7 @@ main ()
   // negative_integer
   //
   {
-    context c (0);
+    context c;
     negative_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -94,7 +94,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     negative_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -106,7 +106,7 @@ main ()
   // non_positive_integer
   //
   {
-    context c (0);
+    context c;
     non_positive_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -116,7 +116,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     non_positive_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -128,7 +128,7 @@ main ()
   // positive_integer
   //
   {
-    context c (0);
+    context c;
     positive_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -138,7 +138,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     positive_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -150,7 +150,7 @@ main ()
   // non_negative_integer
   //
   {
-    context c (0);
+    context c;
     non_negative_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -160,7 +160,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     non_negative_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -188,7 +188,7 @@ main ()
   // integer
   //
   {
-    context c (0);
+    context c;
     integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -198,7 +198,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -210,7 +210,7 @@ main ()
   // negative_integer
   //
   {
-    context c (0);
+    context c;
     negative_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -220,7 +220,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     negative_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -230,7 +230,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     negative_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -242,7 +242,7 @@ main ()
   // non_positive_integer
   //
   {
-    context c (0);
+    context c;
     non_positive_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -252,7 +252,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     non_positive_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -264,7 +264,7 @@ main ()
   // positive_integer
   //
   {
-    context c (0);
+    context c;
     positive_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -274,7 +274,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     positive_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -284,7 +284,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     positive_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -296,7 +296,7 @@ main ()
   // non_negative_integer
   //
   {
-    context c (0);
+    context c;
     non_negative_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -306,7 +306,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     non_negative_integer_pimpl p;
     p.pre ();
     p._pre_impl (c);
diff --git a/tests/cxx/parser/validation/built-in/long-long/driver.cxx b/tests/cxx/parser/validation/built-in/long-long/driver.cxx
index 37aba72..40942e9 100644
--- a/tests/cxx/parser/validation/built-in/long-long/driver.cxx
+++ b/tests/cxx/parser/validation/built-in/long-long/driver.cxx
@@ -19,7 +19,7 @@ main ()
   // Good.
   //
   {
-    context c (0);
+    context c;
     long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -30,7 +30,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -40,7 +40,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -50,7 +50,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -60,7 +60,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -74,7 +74,7 @@ main ()
   //
 
   {
-    context c (0);
+    context c;
     unsigned_long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -87,7 +87,7 @@ main ()
   // Ranges
   //
   {
-    context c (0);
+    context c;
     long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -97,7 +97,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -107,7 +107,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_long_pimpl p;
     p.pre ();
     p._pre_impl (c);
diff --git a/tests/cxx/parser/validation/built-in/long/driver.cxx b/tests/cxx/parser/validation/built-in/long/driver.cxx
index 9034dce..995ef5a 100644
--- a/tests/cxx/parser/validation/built-in/long/driver.cxx
+++ b/tests/cxx/parser/validation/built-in/long/driver.cxx
@@ -19,7 +19,7 @@ main ()
   // Good.
   //
   {
-    context c (0);
+    context c;
     long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -29,7 +29,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -39,7 +39,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -49,7 +49,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -59,7 +59,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -72,7 +72,7 @@ main ()
   //
 
   {
-    context c (0);
+    context c;
     unsigned_long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -85,7 +85,7 @@ main ()
   // Ranges
   //
   {
-    context c (0);
+    context c;
     long_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -95,7 +95,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     long_pimpl p;
     p.pre ();
     p._pre_impl (c);
diff --git a/tests/cxx/parser/validation/built-in/qname/driver.cxx b/tests/cxx/parser/validation/built-in/qname/driver.cxx
index 7f40af4..fced228 100644
--- a/tests/cxx/parser/validation/built-in/qname/driver.cxx
+++ b/tests/cxx/parser/validation/built-in/qname/driver.cxx
@@ -44,7 +44,7 @@ main ()
   // Good.
   //
   {
-    context c (0);
+    context c;
     qname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -57,7 +57,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     qname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -71,7 +71,7 @@ main ()
   // Bad
   //
   {
-    context c (0);
+    context c;
     qname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -81,7 +81,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     qname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -91,7 +91,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     qname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -101,7 +101,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     qname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -111,7 +111,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     qname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -121,7 +121,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     qname_pimpl p;
     p.pre ();
     p._pre_impl (c);
diff --git a/tests/cxx/parser/validation/built-in/short/driver.cxx b/tests/cxx/parser/validation/built-in/short/driver.cxx
index 9dd45e6..09dc090 100644
--- a/tests/cxx/parser/validation/built-in/short/driver.cxx
+++ b/tests/cxx/parser/validation/built-in/short/driver.cxx
@@ -19,7 +19,7 @@ main ()
   // Good.
   //
   {
-    context c (0);
+    context c;
     short_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -29,7 +29,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     short_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -39,7 +39,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     short_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -49,7 +49,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_short_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -59,7 +59,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_short_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -72,7 +72,7 @@ main ()
   //
 
   {
-    context c (0);
+    context c;
     unsigned_short_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -85,7 +85,7 @@ main ()
   // Ranges
   //
   {
-    context c (0);
+    context c;
     short_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -95,7 +95,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     short_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -105,7 +105,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     unsigned_short_pimpl p;
     p.pre ();
     p._pre_impl (c);
diff --git a/tests/cxx/parser/validation/built-in/string/driver.cxx b/tests/cxx/parser/validation/built-in/string/driver.cxx
index 1019906..03184e5 100644
--- a/tests/cxx/parser/validation/built-in/string/driver.cxx
+++ b/tests/cxx/parser/validation/built-in/string/driver.cxx
@@ -40,7 +40,7 @@ main ()
   // string
   //
   {
-    context c (0);
+    context c;
     string_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -56,7 +56,7 @@ main ()
   // normalized_string
   //
   {
-    context c (0);
+    context c;
     normalized_string_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -72,7 +72,7 @@ main ()
   // token
   //
   {
-    context c (0);
+    context c;
     token_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -88,7 +88,7 @@ main ()
   // name
   //
   {
-    context c (0);
+    context c;
     name_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -101,7 +101,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     name_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -114,7 +114,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     name_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -129,7 +129,7 @@ main ()
   // nmtoken
   //
   {
-    context c (0);
+    context c;
     nmtoken_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -145,7 +145,7 @@ main ()
   // nmtokens
   //
   {
-    context c (0);
+    context c;
     string_sequence s;
 #ifdef XSDE_STL    
     s.push_back ("123");
@@ -169,7 +169,7 @@ main ()
   // ncname
   //
   {
-    context c (0);
+    context c;
     ncname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -184,7 +184,7 @@ main ()
   // id
   //
   {
-    context c (0);
+    context c;
     id_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -199,7 +199,7 @@ main ()
   // idref
   //
   {
-    context c (0);
+    context c;
     idref_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -214,7 +214,7 @@ main ()
   // idrefs
   //
   {
-    context c (0);
+    context c;
     string_sequence s;
 #ifdef XSDE_STL    
     s.push_back ("a123");
@@ -238,7 +238,7 @@ main ()
   // language
   //
   {
-    context c (0);
+    context c;
     language_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -248,7 +248,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     language_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -258,7 +258,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     language_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -269,7 +269,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     language_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -286,7 +286,7 @@ main ()
   // name
   //
   {
-    context c (0);
+    context c;
     name_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -296,7 +296,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     name_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -306,7 +306,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     name_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -316,7 +316,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     name_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -326,7 +326,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     name_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -336,7 +336,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     name_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -346,7 +346,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     name_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -358,7 +358,7 @@ main ()
   // nmtoken
   //
   {
-    context c (0);
+    context c;
     nmtoken_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -368,7 +368,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     nmtoken_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -378,7 +378,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     nmtoken_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -388,7 +388,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     nmtoken_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -400,7 +400,7 @@ main ()
   // nmtokens
   //
   {
-    context c (0);
+    context c;
     nmtokens_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -411,7 +411,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     nmtokens_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -423,7 +423,7 @@ main ()
   // ncname
   //
   {
-    context c (0);
+    context c;
     ncname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -433,7 +433,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     ncname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -443,7 +443,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     ncname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -453,7 +453,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     ncname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -463,7 +463,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     ncname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -473,7 +473,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     ncname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -483,7 +483,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     ncname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -493,7 +493,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     ncname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -503,7 +503,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     ncname_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -515,7 +515,7 @@ main ()
   // id
   //
   {
-    context c (0);
+    context c;
     id_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -527,7 +527,7 @@ main ()
   // idref
   //
   {
-    context c (0);
+    context c;
     idref_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -539,7 +539,7 @@ main ()
   // idrefs
   //
   {
-    context c (0);
+    context c;
     idrefs_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -550,7 +550,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     idrefs_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -562,7 +562,7 @@ main ()
   // language
   //
   {
-    context c (0);
+    context c;
     language_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -572,7 +572,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     language_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -582,7 +582,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     language_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -592,7 +592,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     language_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -602,7 +602,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     language_pimpl p;
     p.pre ();
     p._pre_impl (c);
diff --git a/tests/cxx/parser/validation/built-in/uri/driver.cxx b/tests/cxx/parser/validation/built-in/uri/driver.cxx
index 319bb91..b7238ac 100644
--- a/tests/cxx/parser/validation/built-in/uri/driver.cxx
+++ b/tests/cxx/parser/validation/built-in/uri/driver.cxx
@@ -24,7 +24,7 @@ main ()
   // Good.
   //
   {
-    context c (0);
+    context c;
     uri_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -34,7 +34,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     uri_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -44,7 +44,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     uri_pimpl p;
     p.pre ();
     p._pre_impl (c);
@@ -54,7 +54,7 @@ main ()
   }
 
   {
-    context c (0);
+    context c;
     uri_pimpl p;
     p.pre ();
     p._pre_impl (c);
-- 
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