Slightly reworked rewinding; added values rewinding.

Needs a solution to the problem of which values must be displayed
and/or interpolated. Currently, whenever the user rewinds, the
current error measure is displayed, regardless of what was being
displayed before. This will probably be trivial to solve once we
have a nice way of changing the current measure.

* Also changed all OpenMP-powered for loops to use signed integers,
  requirements of OMP2.x (which is what MSVC supports currently)
* The above change comes with a new header for utility functions

1 files changed, 1 insertions, 0 deletions

diff --git a/barchart.cpp b/barchart.cpp
index 70c6004..3adf441 100644
--- a/barchart.cpp
+++ b/barchart.cpp
@@ -105,6 +105,7 @@ void BarChart::brushItem(int item)
         m_brushedItem = item;
         emit itemBrushed(m_brushedItem);
     } else {
+        // safe comparison: we just checked for negative values
         if (m_values.n_elem == 0 || item > m_values.n_elem - 1) {
             return;
         }