diff options
Diffstat (limited to 'src/corelib/tools/qvector.h')
| -rw-r--r-- | src/corelib/tools/qvector.h | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/src/corelib/tools/qvector.h b/src/corelib/tools/qvector.h index f56511edbf..075e8e83e8 100644 --- a/src/corelib/tools/qvector.h +++ b/src/corelib/tools/qvector.h @@ -254,7 +254,10 @@ private: }; #ifdef Q_CC_MSVC -# pragma warning ( disable : 4345 ) // behavior change: an object of POD type constructed with an initializer of the form () will be default-initialized +// behavior change: an object of POD type constructed with an initializer of the form () +// will be default-initialized +# pragma warning ( push ) +# pragma warning ( disable : 4345 ) #endif template <typename T> @@ -270,7 +273,7 @@ void QVector<T>::defaultConstruct(T *from, T *to) } #ifdef Q_CC_MSVC -# pragma warning ( default: 4345 ) +# pragma warning ( pop ) #endif template <typename T> @@ -438,11 +441,15 @@ 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 |