diff --git a/README.md b/README.md
index 79dd804e..03506b64 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 ![catch logo](catch-logo-small.png)
 
-*v1.0 build 17 (master branch)*
+*v1.0 build 18 (master branch)*
 
 Build status (on Travis CI) [![Build Status](https://travis-ci.org/philsquared/Catch.png)](https://travis-ci.org/philsquared/Catch)
 
diff --git a/include/internal/catch_version.hpp b/include/internal/catch_version.hpp
index ace89c57..1ce459cc 100644
--- a/include/internal/catch_version.hpp
+++ b/include/internal/catch_version.hpp
@@ -13,7 +13,7 @@
 namespace Catch {
 
     // These numbers are maintained by a script
-    Version libraryVersion( 1, 0, 17, "master" );
+    Version libraryVersion( 1, 0, 18, "master" );
 }
 
 #endif // TWOBLUECUBES_CATCH_VERSION_HPP_INCLUDED
diff --git a/projects/SelfTest/Baselines/console.std.approved.txt b/projects/SelfTest/Baselines/console.std.approved.txt
index 54bee3e5..54d3ee6f 100644
--- a/projects/SelfTest/Baselines/console.std.approved.txt
+++ b/projects/SelfTest/Baselines/console.std.approved.txt
@@ -428,6 +428,14 @@ MessageTests.cpp:<line number>: FAILED:
 explicitly with message:
   This is a failure
 
+-------------------------------------------------------------------------------
+FAIL does not require an argument
+-------------------------------------------------------------------------------
+MessageTests.cpp:<line number>
+...............................................................................
+
+MessageTests.cpp:<line number>: FAILED:
+
 -------------------------------------------------------------------------------
 Output from all sections is reported
   one
@@ -742,5 +750,5 @@ with expansion:
   "first" == "second"
 
 ===============================================================================
-120 test cases - 35 failed (673 assertions - 90 failed)
+122 test cases - 36 failed (675 assertions - 91 failed)
 
diff --git a/projects/SelfTest/Baselines/console.sw.approved.txt b/projects/SelfTest/Baselines/console.sw.approved.txt
index 7c39bd07..fac8f544 100644
--- a/projects/SelfTest/Baselines/console.sw.approved.txt
+++ b/projects/SelfTest/Baselines/console.sw.approved.txt
@@ -2572,6 +2572,14 @@ MessageTests.cpp:<line number>: FAILED:
 explicitly with message:
   This is a failure
 
+-------------------------------------------------------------------------------
+FAIL does not require an argument
+-------------------------------------------------------------------------------
+MessageTests.cpp:<line number>
+...............................................................................
+
+MessageTests.cpp:<line number>: FAILED:
+
 -------------------------------------------------------------------------------
 Output from all sections is reported
   one
@@ -6359,6 +6367,18 @@ PASSED:
 with expansion:
   __null == 0
 
+-------------------------------------------------------------------------------
+null_ptr
+-------------------------------------------------------------------------------
+TrickyTests.cpp:<line number>
+...............................................................................
+
+TrickyTests.cpp:<line number>:
+PASSED:
+  REQUIRE( ptr.get() == std::__1::__get_nullptr_t() )
+with expansion:
+  __null == nullptr
+
 -------------------------------------------------------------------------------
 X/level/0/a
 -------------------------------------------------------------------------------
@@ -7123,5 +7143,5 @@ with expansion:
   true
 
 ===============================================================================
-120 test cases - 50 failed (692 assertions - 109 failed)
+122 test cases - 51 failed (694 assertions - 110 failed)
 
diff --git a/projects/SelfTest/Baselines/junit.sw.approved.txt b/projects/SelfTest/Baselines/junit.sw.approved.txt
index 0bb7c778..ee3d8013 100644
--- a/projects/SelfTest/Baselines/junit.sw.approved.txt
+++ b/projects/SelfTest/Baselines/junit.sw.approved.txt
@@ -1,5 +1,5 @@
 <testsuites>
-  <testsuite name="~_" errors="10" failures="99" tests="692" hostname="tbd" time="{duration}" timestamp="tbd">
+  <testsuite name="~_" errors="10" failures="100" tests="694" hostname="tbd" time="{duration}" timestamp="tbd">
     <testcase classname="global" name="Some simple comparisons between doubles" time="{duration}"/>
     <testcase classname="global" name="Approximate comparisons with different epsilons" time="{duration}"/>
     <testcase classname="global" name="Approximate comparisons with floats" time="{duration}"/>
@@ -259,6 +259,11 @@ MessageTests.cpp:<line number>
     <testcase classname="global" name="FAIL aborts the test" time="{duration}">
       <failure type="FAIL">
 This is a failure
+MessageTests.cpp:<line number>
+      </failure>
+    </testcase>
+    <testcase classname="global" name="FAIL does not require an argument" time="{duration}">
+      <failure type="FAIL">
 MessageTests.cpp:<line number>
       </failure>
     </testcase>
@@ -509,6 +514,7 @@ TrickyTests.cpp:<line number>
     <testcase classname="global" name="non streamable - with conv. op" time="{duration}"/>
     <testcase classname="global" name="Comparing function pointers" time="{duration}"/>
     <testcase classname="global" name="pointer to class" time="{duration}"/>
+    <testcase classname="global" name="null_ptr" time="{duration}"/>
     <testcase classname="global" name="X/level/0/a" time="{duration}"/>
     <testcase classname="global" name="X/level/0/b" time="{duration}"/>
     <testcase classname="global" name="X/level/1/a" time="{duration}"/>
diff --git a/projects/SelfTest/Baselines/xml.sw.approved.txt b/projects/SelfTest/Baselines/xml.sw.approved.txt
index 8b90d872..39f32771 100644
--- a/projects/SelfTest/Baselines/xml.sw.approved.txt
+++ b/projects/SelfTest/Baselines/xml.sw.approved.txt
@@ -2730,6 +2730,10 @@
       </Failure>
       <OverallResult success="false"/>
     </TestCase>
+    <TestCase name="FAIL does not require an argument">
+      <Failure/>
+      <OverallResult success="false"/>
+    </TestCase>
     <TestCase name="Output from all sections is reported">
       <Section name="one">
         <Failure>
@@ -6646,6 +6650,17 @@ there&quot;
       </Expression>
       <OverallResult success="true"/>
     </TestCase>
+    <TestCase name="null_ptr">
+      <Expression success="true" filename="/Users/philnash/Dev/OSS/Catch/projects/SelfTest/TrickyTests.cpp" >
+        <Original>
+          ptr.get() == std::__1::__get_nullptr_t()
+        </Original>
+        <Expanded>
+          __null == nullptr
+        </Expanded>
+      </Expression>
+      <OverallResult success="true"/>
+    </TestCase>
     <TestCase name="X/level/0/a">
       <OverallResult success="true"/>
     </TestCase>
@@ -7398,7 +7413,7 @@ there&quot;
       </Section>
       <OverallResult success="true"/>
     </TestCase>
-    <OverallResults successes="583" failures="109"/>
+    <OverallResults successes="584" failures="110"/>
   </Group>
-  <OverallResults successes="583" failures="109"/>
+  <OverallResults successes="584" failures="110"/>
 </Catch>
diff --git a/single_include/catch.hpp b/single_include/catch.hpp
index ff06ee2c..7e5881ee 100644
--- a/single_include/catch.hpp
+++ b/single_include/catch.hpp
@@ -1,6 +1,6 @@
 /*
- *  CATCH v1.0 build 17 (master branch)
- *  Generated: 2013-12-11 08:27:45.976816
+ *  CATCH v1.0 build 18 (master branch)
+ *  Generated: 2013-12-14 14:32:59.401645
  *  ----------------------------------------------------------
  *  This file has been merged from multiple headers. Please don't edit it directly
  *  Copyright (c) 2012 Two Blue Cubes Ltd. All rights reserved.
@@ -16,7 +16,7 @@
 #ifdef __clang__
 #pragma clang diagnostic ignored "-Wglobal-constructors"
 #pragma clang diagnostic ignored "-Wvariadic-macros"
-
+#pragma clang diagnostic ignored "-Wc99-extensions"
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wpadded"
 #endif
@@ -43,6 +43,17 @@
 
 // Much of the following code is based on Boost (1.53)
 
+#ifdef __clang__
+#define CATCH_CONFIG_CPP11_NULLPTR
+
+#if __has_feature(cxx_nullptr)
+
+#define CATCH_CONFIG_CPP11_NULLPTR
+
+#endif
+
+#endif // __clang__
+
 ////////////////////////////////////////////////////////////////////////////////
 // Borland
 #ifdef __BORLANDC__
@@ -89,6 +100,11 @@
 
 #endif // __GNUC__ < 3
 
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6) || defined(__GXX_EXPERIMENTAL_CXX0X__)
+
+#define CATCH_CONFIG_CPP11_NULLPTR
+#endif
+
 #endif // __GNUC__
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -183,6 +199,20 @@ namespace Catch {
     inline bool isTrue( bool value ){ return value; }
 
     void throwLogicError( std::string const& message, SourceLineInfo const& locationInfo );
+
+    // Use this in variadic streaming macros to allow
+    //    >> +StreamEndStop
+    // as well as
+    //    >> stuff +StreamEndStop
+    struct StreamEndStop {
+        std::string operator+() {
+            return std::string();
+        }
+    };
+    template<typename T>
+    T const& operator + ( T const& value, StreamEndStop ) {
+        return value;
+    }
 }
 
 #define CATCH_INTERNAL_LINEINFO ::Catch::SourceLineInfo( __FILE__, static_cast<std::size_t>( __LINE__ ) )
@@ -1593,11 +1623,19 @@ struct TestFailureException{};
     } while( Catch::isTrue( false ) )
 
 ///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_MSG( log, messageType, resultDisposition, macroName ) \
-    do { \
-        INTERNAL_CATCH_ACCEPT_INFO( "", macroName, resultDisposition ); \
-        INTERNAL_CATCH_ACCEPT_EXPR( Catch::ExpressionResultBuilder( messageType ) << log, resultDisposition, true ) \
-    } while( Catch::isTrue( false ) )
+#ifdef CATCH_CONFIG_VARIADIC_MACROS
+    #define INTERNAL_CATCH_MSG( messageType, resultDisposition, macroName, ... ) \
+        do { \
+            INTERNAL_CATCH_ACCEPT_INFO( "", macroName, resultDisposition ); \
+            INTERNAL_CATCH_ACCEPT_EXPR( Catch::ExpressionResultBuilder( messageType ) << __VA_ARGS__ +::Catch::StreamEndStop(), resultDisposition, true ) \
+        } while( Catch::isTrue( false ) )
+#else
+    #define INTERNAL_CATCH_MSG( messageType, resultDisposition, macroName, log ) \
+        do { \
+            INTERNAL_CATCH_ACCEPT_INFO( "", macroName, resultDisposition ); \
+            INTERNAL_CATCH_ACCEPT_EXPR( Catch::ExpressionResultBuilder( messageType ) << log, resultDisposition, true ) \
+        } while( Catch::isTrue( false ) )
+#endif
 
 ///////////////////////////////////////////////////////////////////////////////
 #define INTERNAL_CATCH_INFO( log, macroName ) \
@@ -6129,7 +6167,7 @@ namespace Catch {
 namespace Catch {
 
     // These numbers are maintained by a script
-    Version libraryVersion( 1, 0, 17, "master" );
+    Version libraryVersion( 1, 0, 18, "master" );
 }
 
 // #included from: catch_text.hpp
@@ -7920,9 +7958,8 @@ int main (int argc, char * const argv[]) {
 #define CATCH_REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( arg, matcher, Catch::ResultDisposition::Normal, "CATCH_REQUIRE_THAT" )
 
 #define CATCH_INFO( msg ) INTERNAL_CATCH_INFO( msg, "CATCH_INFO" )
-#define CATCH_WARN( msg ) INTERNAL_CATCH_MSG( msg, Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, "CATCH_WARN" )
-#define CATCH_FAIL( msg ) INTERNAL_CATCH_MSG( msg, Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, "CATCH_FAIL" )
-#define CATCH_SUCCEED( msg ) INTERNAL_CATCH_MSG( msg, Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, "CATCH_SUCCEED" )
+#define CATCH_WARN( msg ) INTERNAL_CATCH_MSG( Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, "CATCH_WARN", msg )
+#define CATCH_SUCCEED( msg ) INTERNAL_CATCH_MSG( Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, "CATCH_SUCCEED", msg )
 #define CATCH_SCOPED_INFO( msg ) INTERNAL_CATCH_INFO( msg, "CATCH_INFO" )
 #define CATCH_CAPTURE( msg ) INTERNAL_CATCH_INFO( #msg " := " << msg, "CATCH_CAPTURE" )
 #define CATCH_SCOPED_CAPTURE( msg ) INTERNAL_CATCH_INFO( #msg " := " << msg, "CATCH_CAPTURE" )
@@ -7932,11 +7969,13 @@ int main (int argc, char * const argv[]) {
     #define CATCH_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
     #define CATCH_METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
     #define CATCH_SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
+    #define CATCH_FAIL( ... ) INTERNAL_CATCH_MSG( Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, "CATCH_FAIL", __VA_ARGS__ )
 #else
     #define CATCH_TEST_CASE( name, description ) INTERNAL_CATCH_TESTCASE( name, description )
     #define CATCH_TEST_CASE_METHOD( className, name, description ) INTERNAL_CATCH_TEST_CASE_METHOD( className, name, description )
     #define CATCH_METHOD_AS_TEST_CASE( method, name, description ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, name, description )
     #define CATCH_SECTION( name, description ) INTERNAL_CATCH_SECTION( name, description )
+    #define CATCH_FAIL( msg ) INTERNAL_CATCH_MSG( Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, "CATCH_FAIL", msg )
 #endif
 #define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE( "", "" )
 
@@ -7981,9 +8020,8 @@ int main (int argc, char * const argv[]) {
 #define REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( arg, matcher, Catch::ResultDisposition::Normal, "REQUIRE_THAT" )
 
 #define INFO( msg ) INTERNAL_CATCH_INFO( msg, "INFO" )
-#define WARN( msg ) INTERNAL_CATCH_MSG( msg, Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, "WARN" )
-#define FAIL( msg ) INTERNAL_CATCH_MSG( msg, Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, "FAIL" )
-#define SUCCEED( msg ) INTERNAL_CATCH_MSG( msg, Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, "SUCCEED" )
+#define WARN( msg ) INTERNAL_CATCH_MSG( Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, "WARN", msg )
+#define SUCCEED( msg ) INTERNAL_CATCH_MSG( Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, "SUCCEED", msg )
 #define SCOPED_INFO( msg ) INTERNAL_CATCH_INFO( msg, "INFO" )
 #define CAPTURE( msg ) INTERNAL_CATCH_INFO( #msg " := " << msg, "CAPTURE" )
 #define SCOPED_CAPTURE( msg ) INTERNAL_CATCH_INFO( #msg " := " << msg, "CAPTURE" )
@@ -7993,11 +8031,13 @@ int main (int argc, char * const argv[]) {
     #define TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
     #define METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
     #define SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
+    #define FAIL( ... ) INTERNAL_CATCH_MSG( Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, "FAIL", __VA_ARGS__ )
 #else
     #define TEST_CASE( name, description ) INTERNAL_CATCH_TESTCASE( name, description )
     #define TEST_CASE_METHOD( className, name, description ) INTERNAL_CATCH_TEST_CASE_METHOD( className, name, description )
     #define METHOD_AS_TEST_CASE( method, name, description ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, name, description )
     #define SECTION( name, description ) INTERNAL_CATCH_SECTION( name, description )
+    #define FAIL( msg ) INTERNAL_CATCH_MSG( Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, "FAIL", msg )
 #endif
 #define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE( "", "" )