Fix a -Wsign-compare

diff --git a/gtk2_ardour/quantize_dialog.cc b/gtk2_ardour/quantize_dialog.cc
index 75e72d9215cfefac3190fe4986774eb7180c065e..dd7bd1affc22b272955947c1e89d73f094db49b4 100644 (file)
--- a/gtk2_ardour/quantize_dialog.cc
+++ b/gtk2_ardour/quantize_dialog.cc
@@ -156,7 +156,7 @@ QuantizeDialog::grid_size_to_musical_time (const string& txt) const
 
 
        double divisor = 1.0;
-       for (int i = 1; i < grid_strings.size(); ++i) {
+       for (size_t i = 1; i < grid_strings.size(); ++i) {
                if (txt == grid_strings[i]) {
                        assert (_grid_beats[i] != 0);
                        divisor = 1.0 / _grid_beats[i];