diff options
Diffstat (limited to 'src/corelib/tools/qstringview.cpp')
| -rw-r--r-- | src/corelib/tools/qstringview.cpp | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/src/corelib/tools/qstringview.cpp b/src/corelib/tools/qstringview.cpp index 8504b941b3..fe00965a5c 100644 --- a/src/corelib/tools/qstringview.cpp +++ b/src/corelib/tools/qstringview.cpp @@ -106,7 +106,10 @@ QT_BEGIN_NAMESPACE If in doubt, obtain a strong reference to the data by calling toString() to convert the QStringView into a QString. - QStringView is a \e{Literal Type}. + QStringView is a \e{Literal Type}, but since it stores data as \c{char16_t}, iteration + is not \c constexpr (casts from \c{const char16_t*} to \c{const QChar*}, which is not + allowed in \c constexpr functions). You can use an indexed loop and/or utf16() in + \c constexpr contexts instead. \note We strongly discourage the use of QList<QStringView>, because QList is a very inefficient container for QStringViews (it would heap-allocate @@ -318,7 +321,22 @@ QT_BEGIN_NAMESPACE Returns a const pointer to the first character in the string. - \sa begin(), end() + \note The character array represented by the return value is \e not null-terminated. + + \sa begin(), end(), utf16() +*/ + +/*! + \fn const storage_type *QStringView::utf16() const + + Returns a const pointer to the first character in the string. + + \c{storage_type} is \c{char16_t}, except on MSVC 2013 (which lacks \c char16_t support), + where it is \c{wchar_t} instead. + + \note The character array represented by the return value is \e not null-terminated. + + \sa begin(), end(), data() */ /*! |