Assertion facility.

CMakeLists.txt

@@ -32,6 +32,7 @@ add_subdirectory( word_wrap.test )
 add_subdirectory( string_algorithms.test )
 add_subdirectory( tuplize_args.test )
 add_subdirectory( Thread.test )
+add_subdirectory( assertion.test )
 
 # Sample applications
 add_executable( example example.cc )

assertion.h

@@ -0,0 +1,30 @@
+static_assert( __cplusplus > 2020'99 );
+
+#pragma once
+
+#include <Alepha/Alepha.h>
+
+#include <Alepha/Exception.h>
+
+namespace Alepha::Hydrogen  ::detail::  assertion_m
+{
+	inline namespace exports
+	{
+		class ProgrammerExpectationViolation : public virtual Violation {};
+
+		inline void
+		assertion( const bool b )
+		{
+			if( not b )
+			{
+				throw build_exception< ProgrammerExpectationViolation >( 
+						"Expectation violated." );
+			}
+		}
+	}
+}
+
+namespace Alepha::Hydrogen::inline exports::inline assertion_m
+{
+	using namespace detail::assertion_m::exports;
+}

assertion.test/0.cc

@@ -0,0 +1,4 @@
+static_assert( __cplusplus > 2020'99 );
+
+#include "../assertion.h"
+

assertion.test/CMakeLists.txt

@@ -0,0 +1 @@
+unit_test( 0 )