diff options
Diffstat (limited to 'src/corelib/tools/qarraydata.cpp')
-rw-r--r-- | src/corelib/tools/qarraydata.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/corelib/tools/qarraydata.cpp b/src/corelib/tools/qarraydata.cpp index 3217e87cc8..2bf3e9bacc 100644 --- a/src/corelib/tools/qarraydata.cpp +++ b/src/corelib/tools/qarraydata.cpp @@ -236,6 +236,7 @@ QArrayData::reallocateUnaligned(QArrayData *data, void *dataPointer, qsizetype headerSize = sizeof(QArrayData); qsizetype allocSize = calculateBlockSize(capacity, objectSize, headerSize, option); qptrdiff offset = dataPointer ? reinterpret_cast<char *>(dataPointer) - reinterpret_cast<char *>(data) : headerSize; + Q_ASSERT(offset > 0); allocSize = reserveExtraBytes(allocSize); if (Q_UNLIKELY(allocSize < 0)) // handle overflow. cannot reallocate reliably @@ -245,6 +246,8 @@ QArrayData::reallocateUnaligned(QArrayData *data, void *dataPointer, if (header) { header->alloc = uint(capacity); dataPointer = reinterpret_cast<char *>(header) + offset; + } else { + dataPointer = nullptr; } return qMakePair(static_cast<QArrayData *>(header), dataPointer); } |