[libc-commits] [libc] [libc] Expand usage of libc null checks. (PR #116262)

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``````````bash
git-clang-format --diff ce25bd20dc56cef651170f1ee5820758dee415a2 2c4f2592b0b9d5d3137cb69b577110da7bdb95bb --extensions h,cpp -- libc/src/string/memchr.cpp libc/src/string/memcmp.cpp libc/src/string/memcpy.cpp libc/src/string/memmove.cpp libc/src/string/memory_utils/inline_strcmp.h libc/src/string/memory_utils/inline_strstr.h libc/src/string/mempcpy.cpp libc/src/string/memrchr.cpp libc/src/string/memset.cpp libc/src/string/stpncpy.cpp libc/src/string/strcat.cpp libc/src/string/strcoll.cpp libc/src/string/strcoll_l.cpp libc/src/string/strcpy.cpp libc/src/string/string_utils.h libc/src/string/strncpy.cpp libc/src/string/strsep.cpp libc/src/string/strspn.cpp libc/src/strings/rindex.cpp libc/test/src/string/memchr_test.cpp libc/test/src/string/memcmp_test.cpp libc/test/src/string/memcpy_test.cpp libc/test/src/string/mempcpy_test.cpp libc/test/src/string/memrchr_test.cpp libc/test/src/string/stpncpy_test.cpp libc/test/src/string/strcat_test.cpp libc/test/src/string/strcoll_test.cpp libc/test/src/string/strcpy_test.cpp libc/test/src/string/strlcpy_test.cpp libc/test/src/string/strsep_test.cpp libc/test/src/string/strspn_test.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/libc/test/src/string/memcpy_test.cpp b/libc/test/src/string/memcpy_test.cpp
index 20e01ec8f6..fdab181506 100644
--- a/libc/test/src/string/memcpy_test.cpp
+++ b/libc/test/src/string/memcpy_test.cpp
@@ -74,7 +74,7 @@ TEST(LlvmLibcMemcpyTest, CheckAccess) {
 #endif // !defined(LIBC_FULL_BUILD) && defined(LIBC_TARGET_OS_IS_LINUX)
 
 TEST(LlvmLibcMemcpyTest, CrashOnNullPtr) {
-  ASSERT_DEATH([](){LIBC_NAMESPACE::memcpy(nullptr, nullptr, 1);},
+  ASSERT_DEATH([]() { LIBC_NAMESPACE::memcpy(nullptr, nullptr, 1); },
                WITH_SIGNAL(SIGSEGV));
 }
 

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https://github.com/llvm/llvm-project/pull/116262