[PATCH] D32743: [clang-tidy] Add new cert-dcl21-cpp check.

[Gábor Horváth via Phabricator via cfe-commits]

xazax.hun created this revision.
xazax.hun added a project: clang-tools-extra.
Herald added subscribers: whisperity, mgorny.

This check flags postfix ``operator++`` and ``operator--`` declarations, where the return type is not a const value type. It also attempt to fix the error.

This rule is described by cert: https://www.securecoding.cert.org/confluence/display/cplusplus/DCL21-CPP.+Overloaded+postfix+increment+and+decrement+operators+should+return+a+const+object


Repository:
  rL LLVM

https://reviews.llvm.org/D32743

Files:
  clang-tidy/cert/CERTTidyModule.cpp
  clang-tidy/cert/CMakeLists.txt
  clang-tidy/cert/PostfixOperatorCheck.cpp
  clang-tidy/cert/PostfixOperatorCheck.h
  docs/ReleaseNotes.rst
  docs/clang-tidy/checks/cert-dcl21-cpp.rst
  docs/clang-tidy/checks/list.rst
  test/clang-tidy/cert-dcl21-cpp.cpp

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