QDoc: Clean up loops with iterators

- Use ranged-based fors where applicable.
- Use auto keyword for iterators.
- Move a few variable declarations to where they're to be used.
- Update docs where applicable.

Fixes: QTBUG-80536
Change-Id: I859440b96428dec4ef108b01d391479d3f8dbd83
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>

1 files changed, 3 insertions, 5 deletions

diff --git a/src/qdoc/cppcodemarker.cpp b/src/qdoc/cppcodemarker.cpp
index a26dedc76..251f0cef6 100644
--- a/src/qdoc/cppcodemarker.cpp
+++ b/src/qdoc/cppcodemarker.cpp
@@ -422,11 +422,9 @@ QString CppCodeMarker::markedUpIncludes(const QStringList &includes)
 {
     QString code;
 
-    QStringList::ConstIterator inc = includes.constBegin();
-    while (inc != includes.constEnd()) {
-        code += "<@preprocessor>#include &lt;<@headerfile>" + *inc + "</@headerfile>&gt;</@preprocessor>\n";
-        ++inc;
-    }
+    for (const auto &include : includes)
+        code += "<@preprocessor>#include &lt;<@headerfile>"
+                + include + "</@headerfile>&gt;</@preprocessor>\n";
     return code;
 }