Fix #41439: Update the documentation with the correct information.

[da-viper]

Fixes #41439

The documentation is update to say it is allowed to have omitted parameter names if the variable is not used

[llvmbot]

@llvm/pr-subscribers-clang-tidy

Author: None (Da-Viper)

Changes

Fixes #41439

The documentation is update to say it is allowed to have omitted parameter names if the variable is not used

---

Full diff: https://github.com/llvm/llvm-project/pull/69377.diff

1 Files Affected:

• (modified) clang-tools-extra/docs/clang-tidy/checks/readability/named-parameter.rst (+7-2)

diff --git a/clang-tools-extra/docs/clang-tidy/checks/readability/named-parameter.rst b/clang-tools-extra/docs/clang-tidy/checks/readability/named-parameter.rst
index 8d28c0aa02169a7..7e7099b3df251d1 100644
--- a/clang-tools-extra/docs/clang-tidy/checks/readability/named-parameter.rst
+++ b/clang-tools-extra/docs/clang-tidy/checks/readability/named-parameter.rst
@@ -10,7 +10,12 @@ Guide:
 
 https://google.github.io/styleguide/cppguide.html#Function_Declarations_and_Definitions
 
-All parameters should be named, with identical names in the declaration and
-implementation.
+A parameter name may be omitted only if the parameter is not used in the
+function's definition.
+
+.. code-block:: c++
+int doingSomething(int a, int b, int) {  // Ok: the third paramet is not used
+    return a + b;
+}
 
 Corresponding cpplint.py check name: `readability/function`.

[PiotrZSL]

LGTM.
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