move exception_with_errormsg to pexceptions.hpp

to minimize dependencies of common.hpp

Author: igchor

include/libpmemobj++/detail/common.hpp

@@ -159,16 +159,6 @@ static constexpr size_t CACHELINE_SIZE = 128ULL;
 #error unable to recognize architecture at compile time
 #endif
 
-/**
- * Generic error message decorator for pmemobj-based exceptions.
- */
-template <class ExcT, typename MsgT>
-ExcT
-exception_with_errormsg(const MsgT &msg)
-{
-	return ExcT(msg + std::string(": ") + detail::errormsg());
-}
-
 /**
  * Conditionally add 'count' objects to a transaction.
  *

include/libpmemobj++/pexceptions.hpp

@@ -34,6 +34,16 @@ errormsg(void)
 	return std::string(pmemobj_errormsg());
 #endif
 }
+
+/**
+ * Generic error message decorator for pmemobj-based exceptions.
+ */
+template <class ExcT, typename MsgT>
+ExcT
+exception_with_errormsg(const MsgT &msg)
+{
+	return ExcT(msg + std::string(": ") + detail::errormsg());
+}
 } /* namespace detail */
 
 /**