Add macro for showing error messages

include/util.h

@@ -83,6 +83,8 @@ inline static void mpf_backtrace(){}
 
 /*! \brief Displays a warning message and that's all. */
 #define SETWARN(n,s, ...)   {MpfWarning(__LINE__,PACKAGE_NAME,__FILE__,__func__,n,s, ## __VA_ARGS__);}
+/*! \brief Displays an error message. */
+#define SHWERRM(n,s, ...)   {MpfError(__LINE__,PACKAGE_NAME,__FILE__,__func__,n,s, ## __VA_ARGS__);}
 /*! \brief Displays an error message and quits the current routine. */
 #define SETERRQ(n,s, ...)   {int _ierr = MpfError(__LINE__,PACKAGE_NAME,__FILE__,__func__,n,s, ## __VA_ARGS__); debug_break(); return _ierr;}
 /*! \brief Displays an error message and aborts the code. */