QRegExp: fix usage of uninitialized values

A (probable) typo was causing the code dealing with anchors
to use uninitialized values. This used to work by chance, but was
indeed detected by Valgrind f.i. when running tst_qregexp --
the indexIn test on anc11 data reported:

    ==3015== Conditional jump or move depends on uninitialised value(s)
    ==3015==    at 0x514B4EA: PeppeQt::QRegExpMatchState::testAnchor(int, int, int const*) (qregexp.cpp:1813)
    [...]
    ==3015==  Uninitialised value was created by a stack allocation
    ==3015==    at 0x514B3EB: PeppeQt::QRegExpMatchState::testAnchor(int, int, int const*) (qregexp.cpp:1803)

Fixing the code also makes the aforementioned test to succeed.

Change-Id: If7b3e518c1bbfcf12573d2637c33ef2eca27c4d5
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/corelib/tools/qregexp.cpp b/src/corelib/tools/qregexp.cpp
index 79ceba5ceb..792b9cee4a 100644
--- a/src/corelib/tools/qregexp.cpp
+++ b/src/corelib/tools/qregexp.cpp
@@ -1839,7 +1839,7 @@ bool QRegExpMatchState::testAnchor(int i, int a, const int *capBegin)
                 QRegExpMatchState matchState;
                 matchState.prepareForMatch(ahead[j]->eng);
                 matchState.match(in + pos + i, len - pos - i, 0,
-                    true, true, matchState.caretPos - matchState.pos - i);
+                    true, true, caretPos - pos - i);
                 if ((matchState.captured[0] == 0) == ahead[j]->neg)
                     return false;
             }