init the context on first call

[rrdtool.git] / src / rrd_tool.c

diff --git a/src/rrd_tool.c b/src/rrd_tool.c
index cf29cd9..f393f86 100644 (file)
--- a/src/rrd_tool.c
+++ b/src/rrd_tool.c
@@ -689,12 +689,12 @@ int HandleInputLine(int argc, char **argv, FILE* out)
            printf ("    <%s>", DATA_ROW_TAG);
            printf ("<%s>%lu</%s>", COL_TIME_TAG, ti, COL_TIME_TAG);
            for (j = 0; j < col_cnt; j++) {
+             rrd_value_t newval = DNAN;
               if (enumds == 1)
                snprintf(vtag,15,"%s%lu", COL_DATA_TAG, j);
              else
                snprintf(vtag,15,"%s",COL_DATA_TAG);
               
-             rrd_value_t newval = DNAN;
              newval = *ptr;
              if(isnan(newval)){
                 printf("<%s>NaN</%s>", vtag,vtag);