Obsolete Members for QString

The following members of class QString are deprecated. They are provided to keep old source code working. We strongly advise against using them in new code.

Public Functions

(deprecated (6.4)) qsizetype count() const

Static Public Members

(deprecated (6.0)) QString fromUcs4(const uint *str, qsizetype size = -1)
(deprecated (6.0)) QString fromUtf16(const ushort *str, qsizetype size = -1)

Related Non-Members

(deprecated (6.8)) QString operator""_qs(const char16_t *str, size_t size)

Member Function Documentation

qsizetype QString::count() const

This function is deprecated since 6.4. We strongly advise against using it in new code.

Use size() or length() instead.

This function overloads count().

Same as size().

[static] QString QString::fromUcs4(const uint *str, qsizetype size = -1)

This function is deprecated since 6.0. We strongly advise against using it in new code.

Use the char32_t overload instead.

[static] QString QString::fromUtf16(const ushort *str, qsizetype size = -1)

This function is deprecated since 6.0. We strongly advise against using it in new code.

Use the char16_t overload instead.

Related Non-Members

[since 6.2] QString operator""_qs(const char16_t *str, size_t size)

This function is deprecated since 6.8. We strongly advise against using it in new code.

Use _s from Qt::StringLiterals namespace instead.

Literal operator that creates a QString out of the first size characters in the char16_t string literal str.

The QString is created at compile time, and the generated string data is stored in the read-only segment of the compiled object file. Duplicate literals may share the same read-only memory. This functionality is interchangeable with QStringLiteral, but saves typing when many string literals are present in the code.

The following code creates a QString:

auto str = u"hello"_qs;

This function was introduced in Qt 6.2.

See also QStringLiteral and QtLiterals::operator""_qba(const char *str, size_t size).

© 2022 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.