From 56b0846099e8e0ac07441df34d01be994a1d66bd Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@pdimov.com>
Date: Sat, 3 Nov 2007 20:55:22 +0000
Subject: [PATCH] BOOST_VERIFY added.

[SVN r40728]
---
 assert.html              |  10 +++-
 include/boost/assert.hpp |  13 ++++
 test/Jamfile.v2          |   1 +
 verify_test.cpp          | 126 +++++++++++++++++++++++++++++++++++++++
 4 files changed, 147 insertions(+), 3 deletions(-)
 create mode 100644 verify_test.cpp

diff --git a/assert.html b/assert.html
index 4381ae1..e65e791 100644
--- a/assert.html
+++ b/assert.html
@@ -47,9 +47,13 @@ void assertion_failed(char const * expr, char const * function, char const * fil
 		<P>As is the case with <STRONG>&lt;cassert&gt;</STRONG>, <STRONG>&lt;boost/assert.hpp&gt;</STRONG>
 			can be included multiple times in a single translation unit. <STRONG>BOOST_ASSERT</STRONG>
 			will be redefined each time as specified above.</P>
+		<p><STRONG>&lt;boost/assert.hpp&gt;</STRONG> also defines the macro <STRONG>BOOST_VERIFY</STRONG>.
+			It has exactly the same behavior as <STRONG>BOOST_ASSERT</STRONG>, except 
+			that the expression that is passed to <STRONG>BOOST_VERIFY</STRONG> is always 
+			evaluated.</p>
 		<p><br>
-			<small>Copyright © 2002 by Peter Dimov. Distributed under the Boost Software License, Version 
-				1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A> or 
-				copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
+			<small>Copyright © 2002, 2007 by Peter Dimov. Distributed under the Boost 
+				Software License, Version 1.0. See accompanying file <A href="../../LICENSE_1_0.txt">
+					LICENSE_1_0.txt</A> or copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
 	</body>
 </html>
diff --git a/include/boost/assert.hpp b/include/boost/assert.hpp
index 5619f29..c227f17 100644
--- a/include/boost/assert.hpp
+++ b/include/boost/assert.hpp
@@ -2,6 +2,7 @@
 //  boost/assert.hpp - BOOST_ASSERT(expr)
 //
 //  Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
+//  Copyright (c) 2007 Peter Dimov
 //
 // Distributed under the Boost Software License, Version 1.0. (See
 // accompanying file LICENSE_1_0.txt or copy at
@@ -35,3 +36,15 @@ void assertion_failed(char const * expr, char const * function, char const * fil
 # include <assert.h> // .h to support old libraries w/o <cassert> - effect is the same
 # define BOOST_ASSERT(expr) assert(expr)
 #endif
+
+#undef BOOST_VERIFY
+
+#if defined(BOOST_DISABLE_ASSERTS) || ( !defined(BOOST_ENABLE_ASSERT_HANDLER) && defined(NDEBUG) )
+
+# define BOOST_VERIFY(expr) ((void)(expr))
+
+#else
+
+# define BOOST_VERIFY(expr) BOOST_ASSERT(expr)
+
+#endif
diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index d5ecaa0..0e8ba8f 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -33,4 +33,5 @@ test-suite utility
         [ compile-fail ../value_init_test_fail1.cpp ]
         [ compile-fail ../value_init_test_fail2.cpp ]
         [ compile-fail ../value_init_test_fail3.cpp ]
+        [ run verify_test.cpp ]
     ;
diff --git a/verify_test.cpp b/verify_test.cpp
new file mode 100644
index 0000000..3481636
--- /dev/null
+++ b/verify_test.cpp
@@ -0,0 +1,126 @@
+//
+//  verify_test.cpp - a test for BOOST_VERIFY
+//
+//  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
+//  Copyright (c) 2007 Peter Dimov
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#include <boost/detail/lightweight_test.hpp>
+
+#include <boost/assert.hpp>
+
+int f( int & x )
+{
+    return ++x;
+}
+
+void test_default()
+{
+    int x = 1;
+
+    BOOST_VERIFY( 1 );
+    BOOST_VERIFY( x == 1 );
+    BOOST_VERIFY( ++x );
+    BOOST_VERIFY( f(x) );
+    BOOST_VERIFY( &x );
+
+    BOOST_TEST( x == 3 );
+}
+
+#define BOOST_DISABLE_ASSERTS
+#include <boost/assert.hpp>
+
+void test_disabled()
+{
+    int x = 1;
+
+    BOOST_VERIFY( 1 );
+    BOOST_VERIFY( x == 1 );
+    BOOST_VERIFY( ++x );
+    BOOST_VERIFY( f(x) );
+    BOOST_VERIFY( &x );
+
+    BOOST_TEST( x == 3 );
+
+    BOOST_VERIFY( 0 );
+    BOOST_VERIFY( !x );
+    BOOST_VERIFY( x == 0 );
+    BOOST_VERIFY( !++x );
+    BOOST_VERIFY( !f(x) );
+
+    BOOST_TEST( x == 5 );
+
+    void * p = 0;
+    BOOST_VERIFY( p );
+}
+
+#undef BOOST_DISABLE_ASSERTS
+
+#define BOOST_ENABLE_ASSERT_HANDLER
+#include <boost/assert.hpp>
+#include <boost/config.hpp>
+#include <cstdio>
+
+int handler_invoked = 0;
+
+void boost::assertion_failed(char const * expr, char const * function, char const * file, long line)
+{
+#if !defined(BOOST_NO_STDC_NAMESPACE)
+    using std::printf;
+#endif
+
+    printf("Expression: %s\nFunction: %s\nFile: %s\nLine: %ld\n\n", expr, function, file, line);
+    ++handler_invoked;
+}
+
+struct X
+{
+    static bool f()
+    {
+        BOOST_VERIFY( 0 );
+        return false;
+    }
+};
+
+void test_handler()
+{
+    int x = 1;
+
+    BOOST_VERIFY( 1 );
+    BOOST_VERIFY( x == 1 );
+    BOOST_VERIFY( ++x );
+    BOOST_VERIFY( f(x) );
+    BOOST_VERIFY( &x );
+
+    BOOST_TEST( x == 3 );
+
+    BOOST_VERIFY( 0 );
+    BOOST_VERIFY( !x );
+    BOOST_VERIFY( x == 0 );
+    BOOST_VERIFY( !++x );
+    BOOST_VERIFY( !f(x) );
+
+    BOOST_TEST( x == 5 );
+
+    void * p = 0;
+    BOOST_VERIFY( p );
+
+    BOOST_VERIFY( X::f() );
+
+    BOOST_TEST( handler_invoked == 8 );
+}
+
+#undef BOOST_ENABLE_ASSERT_HANDLER
+
+int main()
+{
+    test_default();
+    test_disabled();
+    test_handler();
+
+    return boost::report_errors();
+}