[libc-commits] [libc] [libc] implement iswcntrl support (PR #185273)

via libc-commits libc-commits at lists.llvm.org
Sun Mar 8 05:29:24 PDT 2026


github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


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<details>
<summary>
You can test this locally with the following command:
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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp -- libc/src/wctype/iswcntrl.cpp libc/src/wctype/iswcntrl.h libc/test/src/wctype/iswcntrl_test.cpp --diff_from_common_commit
``````````

:warning:
The reproduction instructions above might return results for more than one PR
in a stack if you are using a stacked PR workflow. You can limit the results by
changing `origin/main` to the base branch/commit you want to compare against.
:warning:

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<details>
<summary>
View the diff from clang-format here.
</summary>

``````````diff
diff --git a/libc/test/src/wctype/iswcntrl_test.cpp b/libc/test/src/wctype/iswcntrl_test.cpp
index af15759aa..556fb791d 100644
--- a/libc/test/src/wctype/iswcntrl_test.cpp
+++ b/libc/test/src/wctype/iswcntrl_test.cpp
@@ -11,21 +11,21 @@
 #include "test/UnitTest/Test.h"
 
 TEST(LlvmLibciswcntrl, DefaultLocale) {
-  EXPECT_NE(LIBC_NAMESPACE::iswcntrl(L'\0'),  0);
-  EXPECT_NE(LIBC_NAMESPACE::iswcntrl(L'\t'),  0);
-  EXPECT_NE(LIBC_NAMESPACE::iswcntrl(L'\n'),  0);
-  EXPECT_NE(LIBC_NAMESPACE::iswcntrl(L'\v'),  0);
-  EXPECT_NE(LIBC_NAMESPACE::iswcntrl(L'\f'),  0);
-  EXPECT_NE(LIBC_NAMESPACE::iswcntrl(L'\r'),  0);
+  EXPECT_NE(LIBC_NAMESPACE::iswcntrl(L'\0'), 0);
+  EXPECT_NE(LIBC_NAMESPACE::iswcntrl(L'\t'), 0);
+  EXPECT_NE(LIBC_NAMESPACE::iswcntrl(L'\n'), 0);
+  EXPECT_NE(LIBC_NAMESPACE::iswcntrl(L'\v'), 0);
+  EXPECT_NE(LIBC_NAMESPACE::iswcntrl(L'\f'), 0);
+  EXPECT_NE(LIBC_NAMESPACE::iswcntrl(L'\r'), 0);
 
-  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L' '),   0);
-  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'!'),   0);
-  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'0'),   0);
-  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'9'),   0);
-  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'A'),   0);
-  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'Z'),   0);
-  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'a'),   0);
-  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'z'),   0);
-  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'?'),   0);
-  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'~'),   0);
+  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L' '), 0);
+  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'!'), 0);
+  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'0'), 0);
+  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'9'), 0);
+  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'A'), 0);
+  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'Z'), 0);
+  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'a'), 0);
+  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'z'), 0);
+  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'?'), 0);
+  EXPECT_EQ(LIBC_NAMESPACE::iswcntrl(L'~'), 0);
 }
\ No newline at end of file

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https://github.com/llvm/llvm-project/pull/185273


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