From 9aaf258211691ddae434ad9a303a6237068b62af Mon Sep 17 00:00:00 2001 From: Ahmad Samir Date: Wed, 28 Dec 2022 01:42:38 +0200 Subject: QStringBuilder: document issues with using "auto" keyword Cleanup QStringBuilder API docs. Task-number: QTBUG-104354 Change-Id: I00029c8f4bfdf35869396ac14d7d9ba0da34cdb5 Reviewed-by: Thiago Macieira --- src/corelib/doc/snippets/qstring/stringbuilder.cpp | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'src/corelib/doc') diff --git a/src/corelib/doc/snippets/qstring/stringbuilder.cpp b/src/corelib/doc/snippets/qstring/stringbuilder.cpp index 6b3175d48a..61b7a9a133 100644 --- a/src/corelib/doc/snippets/qstring/stringbuilder.cpp +++ b/src/corelib/doc/snippets/qstring/stringbuilder.cpp @@ -1,6 +1,8 @@ // Copyright (C) 2016 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause +#include + using namespace Qt::StringLiterals; //! [0] @@ -25,3 +27,24 @@ using namespace Qt::StringLiterals; QLatin1StringView world("world"); QString message = hello % el % world % QChar('!'); //! [5] + +//! [6] + QString str("QStringBuilder"); + + // "s" type is deduced as QStringBuilder + auto s = "Like hot glue, " % str % " concatenates strings"; + + // Similarly the return type of this lambda is deduced as QStringBuilder + auto concatenateStr = []() { + return "Like hot glue, " % str % " concatenates strings"; + }; +//! [6] + +//! [7] + QString s = "Like hot glue, " % str % " concatenates strings"; + + // With a lambda, specify a trailing return type + auto concatenateStr = []() -> QString { + return "Like hot glue, " % str % " concatenates strings"; + }; +//! [7] -- cgit v1.2.3