new error core NC_EMULTIDEFINE_HINTS for inconsistent I/O hints set by users

Author: wkliao

src/dispatchers/error_codes.c

@@ -289,6 +289,8 @@ ncmpi_strerror(int err)
             return "Variable fill value is inconsistent among processes.";
         case NC_EMULTIDEFINE_CMODE:
             return "File create mode is inconsistent among processes.";
+        case NC_EMULTIDEFINE_HINTS:
+            return "I/O hints are not consistent among processes.";
         case NC_EBADLOG:
             return "Unrecognized burst buffering log file format.";
         case NC_EFLUSHED:
@@ -747,6 +749,8 @@ ncmpi_strerrno(int err)
         case (NC_EMULTIDEFINE_VAR_FILL_MODE):	return "NC_EMULTIDEFINE_VAR_FILL_MODE";
         case (NC_EMULTIDEFINE_VAR_FILL_VALUE):	return "NC_EMULTIDEFINE_VAR_FILL_VALUE";
         case (NC_EMULTIDEFINE_CMODE):		return "NC_EMULTIDEFINE_CMODE";
+        case (NC_EMULTIDEFINE_HINTS):		return "NC_EMULTIDEFINE_HINTS";
+
         default:
               sprintf(unknown_str,"Unknown code %d",err);
     }

src/include/pnetcdf.h.in

@@ -686,9 +686,10 @@ by the desired type. */
 #define NC_EMULTIDEFINE_VAR_FILL_MODE	(-271) /**< inconsistent variable fill mode */
 #define NC_EMULTIDEFINE_VAR_FILL_VALUE	(-272) /**< inconsistent variable fill value */
 #define NC_EMULTIDEFINE_CMODE		(-273) /**< inconsistent file create modes among processes */
+#define NC_EMULTIDEFINE_HINTS		(-274) /**< inconsistent I/O hints among processes */
 
 #define NC_EMULTIDEFINE_FIRST		NC_EMULTIDEFINE
-#define NC_EMULTIDEFINE_LAST		NC_EMULTIDEFINE_CMODE
+#define NC_EMULTIDEFINE_LAST		NC_EMULTIDEFINE_HINTS
 
 /* backward compatible with PnetCDF 1.3.1 and earlier */
 #define NC_ECMODE			NC_EMULTIDEFINE_OMODE