diff options
| -rw-r--r-- | src/corelib/tools/qvector.h | 14 | ||||
| -rw-r--r-- | tests/auto/corelib/tools/qvector/tst_qvector.cpp | 3 |
2 files changed, 12 insertions, 5 deletions
diff --git a/src/corelib/tools/qvector.h b/src/corelib/tools/qvector.h index f56511edbf..505e1a32e4 100644 --- a/src/corelib/tools/qvector.h +++ b/src/corelib/tools/qvector.h @@ -438,11 +438,15 @@ QVector<T>::QVector(int asize, const T &t) template <typename T> QVector<T>::QVector(std::initializer_list<T> args) { - d = Data::allocate(args.size()); - // std::initializer_list<T>::iterator is guaranteed to be - // const T* ([support.initlist]/1), so can be memcpy'ed away from by copyConstruct - copyConstruct(args.begin(), args.end(), d->begin()); - d->size = int(args.size()); + if (args.size() > 0) { + d = Data::allocate(args.size()); + // std::initializer_list<T>::iterator is guaranteed to be + // const T* ([support.initlist]/1), so can be memcpy'ed away from by copyConstruct + copyConstruct(args.begin(), args.end(), d->begin()); + d->size = int(args.size()); + } else { + d = Data::sharedNull(); + } } #endif diff --git a/tests/auto/corelib/tools/qvector/tst_qvector.cpp b/tests/auto/corelib/tools/qvector/tst_qvector.cpp index 53caec4a64..59956e33cf 100644 --- a/tests/auto/corelib/tools/qvector/tst_qvector.cpp +++ b/tests/auto/corelib/tools/qvector/tst_qvector.cpp @@ -2042,6 +2042,9 @@ void tst_QVector::initializeList() QVector<QVector<T>> v3; v3 << v1 << (QVector<T>() << val4) << QVector<T>() << v1; QCOMPARE(v3, v2); + + QVector<T> v4({}); + QCOMPARE(v4.size(), 0); #endif } |