================
@@ -0,0 +1,131 @@
+.. title:: clang-tidy - modernize-use-string-view
+
+modernize-use-string-view
+=========================
+
+Looks for functions returning ``std::[w|u8|u16|u32]string`` and suggests to
+change it to ``std::[...]string_view`` for performance reasons if possible.
+
+Each time a new ``std::string`` is created from a literal, a copy of that
+literal is allocated either in ``std::string``'s internal buffer
+(for short literals) or in a heap.
+
+For the cases where ``std::string`` is returned from a function,
+such allocations can sometimes be eliminated by using ``std::string_view``
+as a return type.
+
+This check looks for such functions returning ``std::string`` baked from the
----------------
vbvictor wrote:

```suggestion
This check looks for such functions returning ``std::string`` constructed from 
the
```

https://github.com/llvm/llvm-project/pull/172170
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