Port from qAsConst() to std::as_const()

We've been requiring C++17 since Qt 6.0, and our qAsConst use finally
starts to bother us (QTBUG-99313), so time to port away from it
now.

Since qAsConst has exactly the same semantics as std::as_const (down
to rvalue treatment, constexpr'ness and noexcept'ness), there's really
nothing more to it than a global search-and-replace, with manual
unstaging of the actual definition and documentation in dist/,
src/corelib/doc/ and src/corelib/global/.

Task-number: QTBUG-99313
Change-Id: I4c7114444a325ad4e62d0fcbfd347d2bbfb21541
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>

1 files changed, 2 insertions, 2 deletions

diff --git a/tests/auto/corelib/thread/qfuture/tst_qfuture.cpp b/tests/auto/corelib/thread/qfuture/tst_qfuture.cpp
index 81120c6f67..6664bb4776 100644
--- a/tests/auto/corelib/thread/qfuture/tst_qfuture.cpp
+++ b/tests/auto/corelib/thread/qfuture/tst_qfuture.cpp
@@ -1076,13 +1076,13 @@ void tst_QFuture::multipleResults()
     QList<int> fasit = QList<int>() << 1 << 2 << 3 << 4;
     {
         QList<int> results;
-        for (int result : qAsConst(f))
+        for (int result : std::as_const(f))
             results.append(result);
         QCOMPARE(results, fasit);
     }
     {
         QList<int> results;
-        for (int result : qAsConst(copy))
+        for (int result : std::as_const(copy))
             results.append(result);
         QCOMPARE(results, fasit);
     }