[libc-commits] [libc] [libc] Implement tmpfile and corresponding tests (PR #213396)

via libc-commits libc-commits at lists.llvm.org
Mon Aug 3 10:48:21 PDT 2026


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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,h -- libc/src/stdio/linux/tmpfile.cpp libc/src/stdio/tmpfile.h libc/test/src/stdio/tmpfile_test.cpp --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/libc/src/stdio/linux/tmpfile.cpp b/libc/src/stdio/linux/tmpfile.cpp
index 9741877df..ca915df10 100644
--- a/libc/src/stdio/linux/tmpfile.cpp
+++ b/libc/src/stdio/linux/tmpfile.cpp
@@ -1,4 +1,5 @@
-//===-- Implementation of tmpfile --------------------------------*- C++ -*-===//
+//===-- Implementation of tmpfile --------------------------------*- C++
+//-*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
@@ -8,8 +9,8 @@
 
 #include "src/stdio/tmpfile.h"
 #include "hdr/fcntl_macros.h"
-#include "src/__support/OSUtil/linux/syscall_wrappers/open.h"
 #include "hdr/types/FILE.h"
+#include "src/__support/OSUtil/linux/syscall_wrappers/open.h"
 
 #include "src/__support/File/linux/file.h"
 #include "src/__support/common.h"
diff --git a/libc/src/stdio/tmpfile.h b/libc/src/stdio/tmpfile.h
index 680663a77..99ae7abd2 100644
--- a/libc/src/stdio/tmpfile.h
+++ b/libc/src/stdio/tmpfile.h
@@ -1,4 +1,5 @@
-//===-- Implementation header of tmpfile ---------------------------*- C++ -*-===//
+//===-- Implementation header of tmpfile ---------------------------*- C++
+//-*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
diff --git a/libc/test/src/stdio/tmpfile_test.cpp b/libc/test/src/stdio/tmpfile_test.cpp
index c6e7e4229..4c8f64e6d 100644
--- a/libc/test/src/stdio/tmpfile_test.cpp
+++ b/libc/test/src/stdio/tmpfile_test.cpp
@@ -7,13 +7,13 @@
 //===----------------------------------------------------------------------===//
 //
 #include "hdr/stdio_macros.h"
-#include "src/stdio/tmpfile.h"
 #include "src/stdio/fclose.h"
 #include "src/stdio/fflush.h"
 #include "src/stdio/fread.h"
 #include "src/stdio/fseek.h"
 #include "src/stdio/ftell.h"
 #include "src/stdio/fwrite.h"
+#include "src/stdio/tmpfile.h"
 #include "test/UnitTest/Test.h"
 
 constexpr char TEST_STR[] = "test\xaa\t\xbb";
@@ -25,7 +25,8 @@ TEST(LlvmLibcTmpfileTest, CreationAndInvariants) {
 
   EXPECT_EQ(LIBC_NAMESPACE::ftell(file), 0L);
 
-  size_t nbytes_written = LIBC_NAMESPACE::fwrite(TEST_STR, 1, TEST_STR_SIZE, file);
+  size_t nbytes_written =
+      LIBC_NAMESPACE::fwrite(TEST_STR, 1, TEST_STR_SIZE, file);
   EXPECT_EQ(nbytes_written, TEST_STR_SIZE);
 
   EXPECT_EQ(LIBC_NAMESPACE::fflush(file), 0);
@@ -34,10 +35,7 @@ TEST(LlvmLibcTmpfileTest, CreationAndInvariants) {
   EXPECT_EQ(LIBC_NAMESPACE::fseek(file, 0, SEEK_SET), 0);
   EXPECT_EQ(LIBC_NAMESPACE::ftell(file), 0L);
 
-
   char buff[TEST_STR_SIZE * 2];
   size_t nbytes_read = LIBC_NAMESPACE::fread(buff, 1, TEST_STR_SIZE, file);
   EXPECT_EQ(nbytes_read, TEST_STR_SIZE);
-
 }
-

``````````

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https://github.com/llvm/llvm-project/pull/213396


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