Removed SafeBool

include/internal/catch_common.h

@@ -44,17 +44,6 @@ namespace Catch {
         virtual ~NonCopyable();
     };
 
-    class SafeBool {
-    public:
-        typedef void (SafeBool::*type)() const;
-
-        static type makeSafe( bool value ) {
-            return value ? &SafeBool::trueValue : 0;
-        }
-    private:
-        void trueValue() const {}
-    };
-
     template<typename ContainerT>
     inline void deleteAll( ContainerT& container ) {
         for( auto p : container )

include/internal/catch_option.hpp

@@ -61,8 +61,8 @@ namespace Catch {
         bool none() const { return nullableValue == nullptr; }
 
         bool operator !() const { return nullableValue == nullptr; }
-        operator SafeBool::type() const {
-            return SafeBool::makeSafe( some() );
+        explicit operator bool() const {
+            return some();
         }
 
     private:

include/internal/catch_ptr.hpp

@@ -56,7 +56,7 @@ namespace Catch {
         T& operator*() const { return *m_p; }
         T* operator->() const { return m_p; }
         bool operator !() const { return m_p == nullptr; }
-        operator SafeBool::type() const { return SafeBool::makeSafe( m_p != nullptr ); }
+        explicit operator bool() const { return m_p != nullptr; }
 
     private:
         T* m_p;