the first TREND* value can be calculated earlier ... -- fredrick (fix for #312)

[rrdtool.git] / src / rrd_rpncalc.c

diff --git a/src/rrd_rpncalc.c b/src/rrd_rpncalc.c
index b563db4..8dd2240 100644 (file)
--- a/src/rrd_rpncalc.c
+++ b/src/rrd_rpncalc.c
@@ -77,7 +77,7 @@ rpnp_t   *rpn_expand(
         return NULL;
     }
     for (i = 0; rpnc[i].op != OP_END; ++i) {
-        rpnp[i].op = (op_en)rpnc[i].op;
+        rpnp[i].op = (enum op_en)rpnc[i].op;
         if (rpnp[i].op == OP_NUMBER) {
             rpnp[i].val = (double) rpnc[i].val;
         } else if (rpnp[i].op == OP_VARIABLE || rpnp[i].op == OP_PREV_OTHER) {
@@ -297,7 +297,8 @@ rpnp_t   *rpn_parse(
     char      vname[MAX_VNAME_LEN + 10];
     char     *old_locale;
 
-    old_locale = setlocale(LC_NUMERIC, "C");
+    old_locale = setlocale(LC_NUMERIC, NULL);
+    setlocale(LC_NUMERIC, "C");
 
     rpnp = NULL;
     expr = (char *) expr_const;
@@ -880,7 +881,7 @@ short rpn_calc(
                 time_t    dur = (time_t) rpnstack->s[stptr];
                 time_t    step = (time_t) rpnp[rpi - 2].step;
 
-                if (output_idx > (int) ceil((float) dur / (float) step)) {
+                if (output_idx + 1 >= (int) ceil((float) dur / (float) step)) {
                     int       ignorenan = (rpnp[rpi].op == OP_TREND);
                     double    accum = 0.0;
                     int       i = 0;