Use prefix instead of postfix for iterators

The postfix increment(decrement) creates a temp copy of *this before the
modification and then returns that copy. It's needed only when using the
old iterator and then incrementing it.

Change-Id: I7f6702de78f5f987cec3556047e76049b4ee063a
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gui/text/qfontdatabase.cpp b/src/gui/text/qfontdatabase.cpp
index 3fc23513d7..8dbd78cd57 100644
--- a/src/gui/text/qfontdatabase.cpp
+++ b/src/gui/text/qfontdatabase.cpp
@@ -781,7 +781,7 @@ static QStringList fallbackFamilies(const QString &family, QFont::Style style, Q
         }
         if (!contains) {
             i = retList.erase(i);
-            i--;
+            --i;
         }
     }
     return retList;