Core classes, examples, demos: Some changes from string to char

Reviewed-by: Peter Hartmann

3 files changed, 4 insertions, 4 deletions

diff --git a/src/corelib/io/qfsfileengine_unix.cpp b/src/corelib/io/qfsfileengine_unix.cpp
index 722d6d3..9179485 100644
--- a/src/corelib/io/qfsfileengine_unix.cpp
+++ b/src/corelib/io/qfsfileengine_unix.cpp
@@ -98,7 +98,7 @@ static inline QByteArray openModeToFopenMode(QIODevice::OpenMode flags, const QS
             if (!fileName.isEmpty()
                 && QT_STAT(QFile::encodeName(fileName), &statBuf) == 0
                 && (statBuf.st_mode & S_IFMT) == S_IFREG) {
-                mode += "+";
+                mode += '+';
             } else {
                 mode = "wb+";
             }
diff --git a/src/network/access/qnetworkaccesshttpbackend.cpp b/src/network/access/qnetworkaccesshttpbackend.cpp
index 58123b2..61a95fe 100644
--- a/src/network/access/qnetworkaccesshttpbackend.cpp
+++ b/src/network/access/qnetworkaccesshttpbackend.cpp
@@ -753,7 +753,7 @@ void QNetworkAccessHttpBackend::replyHeaderChanged()
         QByteArray value = rawHeader(it->first);
         if (!value.isEmpty()) {
             if (qstricmp(it->first.constData(), "set-cookie") == 0)
-                value += "\n";
+                value += '\n';
             else
                 value += ", ";
         }
diff --git a/src/network/ssl/qsslcertificate.cpp b/src/network/ssl/qsslcertificate.cpp
index 9a9b1b5..fd647e2 100644
--- a/src/network/ssl/qsslcertificate.cpp
+++ b/src/network/ssl/qsslcertificate.cpp
@@ -634,11 +634,11 @@ QByteArray QSslCertificatePrivate::QByteArray_from_X509(X509 *x509, QSsl::Encodi
     QByteArray tmp;
     for (int i = 0; i <= array.size() - 64; i += 64) {
         tmp += QByteArray::fromRawData(array.data() + i, 64);
-        tmp += "\n";
+        tmp += '\n';
     }
     if (int remainder = array.size() % 64) {
         tmp += QByteArray::fromRawData(array.data() + array.size() - remainder, remainder);
-        tmp += "\n";
+        tmp += '\n';
     }
 
     return BEGINCERTSTRING "\n" + tmp + ENDCERTSTRING "\n";