QStringConverter/Doc: add more details about additional codecs

Fixes: QTBUG-124221
Change-Id: If1bf59ecbe014b569ba1fffd17c4d113d02425eb
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
(cherry picked from commit 71e87993d6bb9c3bf61883d66f97a5e0cfa2bfb1)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 9 insertions, 1 deletions

diff --git a/src/corelib/text/qstringconverter.cpp b/src/corelib/text/qstringconverter.cpp
index fd45ccf2fd..2041372fda 100644
--- a/src/corelib/text/qstringconverter.cpp
+++ b/src/corelib/text/qstringconverter.cpp
@@ -1774,7 +1774,7 @@ static qsizetype toLatin1Len(qsizetype l) { return l + 1; }
     operation, encoding UTF-16 encoded data (usually in the form of a QString) to
     the requested encoding.
 
-    The supported encodings are:
+    The following encodings are always supported:
 
     \list
     \li UTF-8
@@ -1788,6 +1788,10 @@ static qsizetype toLatin1Len(qsizetype l) { return l + 1; }
     \li The system encoding
     \endlist
 
+    QStringConverter may support more encodings depending on how Qt was
+    compiled. If more codecs are supported, they can be listed using
+    availableCodecs().
+
     \l {QStringConverter}s can be used as follows to convert some encoded
     string to and from UTF-16.
 
@@ -2356,6 +2360,10 @@ static qsizetype availableCodecCount()
     QStringDecoder's constructor to create a en- or decoder for
     the given codec.
 
+    This function may be used to obtain a listing of additional codecs beyond
+    the standard ones. Support for additional codecs requires Qt be compiled
+    with support for the ICU library.
+
     \note The order of codecs is an internal implementation detail
     and not guaranteed to be stable.
  */