[clang-tidy] hicpp-ignored-remove-result ignore functions with same prefixes as the target

[HerrCai0907]

Fixes: #87359
#82952 introduces regexes matching and causes false positives.
This patch fixes it by adding postfix $

[llvmbot]

@llvm/pr-subscribers-clang-tools-extra

@llvm/pr-subscribers-clang-tidy

Author: Congcong Cai (HerrCai0907)

Changes

Fixes: #87359
#82952 introduces regexes matching and causes false positives.
This patch fixes it by adding postfix $

---

Full diff: https://github.com/llvm/llvm-project/pull/87587.diff

3 Files Affected:

• (modified) clang-tools-extra/clang-tidy/hicpp/IgnoredRemoveResultCheck.cpp (+3-3)
• (modified) clang-tools-extra/docs/ReleaseNotes.rst (+4)
• (modified) clang-tools-extra/test/clang-tidy/checkers/hicpp/ignored-remove-result.cpp (+6)

diff --git a/clang-tools-extra/clang-tidy/hicpp/IgnoredRemoveResultCheck.cpp b/clang-tools-extra/clang-tidy/hicpp/IgnoredRemoveResultCheck.cpp
index 8020f8cd062510..b1a18485ce168d 100644
--- a/clang-tools-extra/clang-tidy/hicpp/IgnoredRemoveResultCheck.cpp
+++ b/clang-tools-extra/clang-tidy/hicpp/IgnoredRemoveResultCheck.cpp
@@ -14,9 +14,9 @@ IgnoredRemoveResultCheck::IgnoredRemoveResultCheck(llvm::StringRef Name,
                                                    ClangTidyContext *Context)
     : UnusedReturnValueCheck(Name, Context,
                              {
-                                 "::std::remove",
-                                 "::std::remove_if",
-                                 "::std::unique",
+                                 "::std::remove$",
+                                 "::std::remove_if$",
+                                 "::std::unique$",
                              }) {
   // The constructor for ClangTidyCheck needs to have been called
   // before we can access options via Options.get().
diff --git a/clang-tools-extra/docs/ReleaseNotes.rst b/clang-tools-extra/docs/ReleaseNotes.rst
index 309b844615a121..456e09204fa2f9 100644
--- a/clang-tools-extra/docs/ReleaseNotes.rst
+++ b/clang-tools-extra/docs/ReleaseNotes.rst
@@ -210,6 +210,10 @@ Changes in existing checks
 - Improved :doc:`google-runtime-int <clang-tidy/checks/google/runtime-int>`
   check performance through optimizations.
 
+- Improved :doc:`hicpp-ignored-remove-result <clang-tidy/checks/hicpp/ignored-remove-result>`
+  check by ignoring other functions with same prefixes as the target specific
+  functions.
+
 - Improved :doc:`llvm-header-guard
   <clang-tidy/checks/llvm/header-guard>` check by replacing the local
   option `HeaderFileExtensions` by the global option of the same name.
diff --git a/clang-tools-extra/test/clang-tidy/checkers/hicpp/ignored-remove-result.cpp b/clang-tools-extra/test/clang-tidy/checkers/hicpp/ignored-remove-result.cpp
index b068f085909893..fc431024303ab2 100644
--- a/clang-tools-extra/test/clang-tidy/checkers/hicpp/ignored-remove-result.cpp
+++ b/clang-tools-extra/test/clang-tidy/checkers/hicpp/ignored-remove-result.cpp
@@ -15,6 +15,10 @@ ForwardIt unique(ForwardIt, ForwardIt);
 template <class InputIt, class T>
 InputIt find(InputIt, InputIt, const T&);
 
+struct unique_disposable {
+  void* release();
+};
+
 class error_code {
 };
 
@@ -63,4 +67,6 @@ void noWarning() {
   //   bugprone-unused-return-value's checked return types.
   errorFunc();
   (void) errorFunc();
+
+  std::unique_disposable{}.release();
 }

[PiotrZSL]

LGTM

[felix642]

LGTM