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>

5 files changed, 6 insertions, 6 deletions

diff --git a/src/network/access/qhstsstore.cpp b/src/network/access/qhstsstore.cpp
index 80bb06d656..a972a90ee7 100644
--- a/src/network/access/qhstsstore.cpp
+++ b/src/network/access/qhstsstore.cpp
@@ -80,7 +80,7 @@ void QHstsStore::synchronize()
 
     if (observedPolicies.size()) {
         beginHstsGroups();
-        for (const QHstsPolicy &policy : qAsConst(observedPolicies)) {
+        for (const QHstsPolicy &policy : std::as_const(observedPolicies)) {
             const QString key(host_name_to_settings_key(policy.host()));
             // If we fail to write a new, updated policy, we also remove the old one.
             if (policy.isExpired() || !serializePolicy(key, policy))
diff --git a/src/network/access/qhttpnetworkconnection.cpp b/src/network/access/qhttpnetworkconnection.cpp
index 1f2b813a83..73bf8bebc3 100644
--- a/src/network/access/qhttpnetworkconnection.cpp
+++ b/src/network/access/qhttpnetworkconnection.cpp
@@ -1261,7 +1261,7 @@ void QHttpNetworkConnectionPrivate::_q_hostLookupFinished(const QHostInfo &info)
             networkLayerState = QHttpNetworkConnectionPrivate::Unknown;
         } else if (connectionType == QHttpNetworkConnection::ConnectionTypeHTTP2
                    || connectionType == QHttpNetworkConnection::ConnectionTypeHTTP2Direct) {
-            for (const HttpMessagePair &h2Pair : qAsConst(channels[0].h2RequestsToSend)) {
+            for (const HttpMessagePair &h2Pair : std::as_const(channels[0].h2RequestsToSend)) {
                 // emit error for all replies
                 QHttpNetworkReply *currentReply = h2Pair.second;
                 Q_ASSERT(currentReply);
diff --git a/src/network/access/qnetworkdiskcache.cpp b/src/network/access/qnetworkdiskcache.cpp
index 53a443d41c..6b52b8d49a 100644
--- a/src/network/access/qnetworkdiskcache.cpp
+++ b/src/network/access/qnetworkdiskcache.cpp
@@ -510,7 +510,7 @@ qint64 QNetworkDiskCache::expire()
         QFile file(name);
 
         if (name.contains(PREPARED_SLASH)) {
-            for (QCacheItem *item : qAsConst(d->inserting)) {
+            for (QCacheItem *item : std::as_const(d->inserting)) {
                 if (item && item->file && item->file->fileName() == name) {
                     delete item->file;
                     item->file = nullptr;
diff --git a/src/network/access/qnetworkreplyhttpimpl.cpp b/src/network/access/qnetworkreplyhttpimpl.cpp
index 854f9c8e6b..58e768583d 100644
--- a/src/network/access/qnetworkreplyhttpimpl.cpp
+++ b/src/network/access/qnetworkreplyhttpimpl.cpp
@@ -747,7 +747,7 @@ void QNetworkReplyHttpImplPrivate::postRequest(const QNetworkRequest &newHttpReq
         }
     }
 
-    for (const QByteArray &header : qAsConst(headers))
+    for (const QByteArray &header : std::as_const(headers))
         httpRequest.setHeaderField(header, newHttpRequest.rawHeader(header));
 
     if (newHttpRequest.attribute(QNetworkRequest::HttpPipeliningAllowedAttribute).toBool())
diff --git a/src/network/access/qnetworkrequest.cpp b/src/network/access/qnetworkrequest.cpp
index a1a72eae6a..023d652721 100644
--- a/src/network/access/qnetworkrequest.cpp
+++ b/src/network/access/qnetworkrequest.cpp
@@ -1067,7 +1067,7 @@ static QByteArray headerValue(QNetworkRequest::KnownHeaders header, const QVaria
 
         QByteArray result;
         bool first = true;
-        for (const QNetworkCookie &cookie : qAsConst(cookies)) {
+        for (const QNetworkCookie &cookie : std::as_const(cookies)) {
             if (!first)
                 result += "; ";
             first = false;
@@ -1083,7 +1083,7 @@ static QByteArray headerValue(QNetworkRequest::KnownHeaders header, const QVaria
 
         QByteArray result;
         bool first = true;
-        for (const QNetworkCookie &cookie : qAsConst(cookies)) {
+        for (const QNetworkCookie &cookie : std::as_const(cookies)) {
             if (!first)
                 result += ", ";
             first = false;