[libc-commits] [libc] [libc] Support configurable errno modes (PR #98287)

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``````````bash
git-clang-format --diff 93869dfd89387844bf8b605ebcd1abc0cc81bde8 3c915c740cd1439486fd2578ed54e2cfa7edef82 -- libc/src/errno/libc_errno.cpp libc/src/errno/libc_errno.h
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View the diff from clang-format here.
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``````````diff
diff --git a/libc/src/errno/libc_errno.cpp b/libc/src/errno/libc_errno.cpp
index ccc7467ed2..cf42f26e01 100644
--- a/libc/src/errno/libc_errno.cpp
+++ b/libc/src/errno/libc_errno.cpp
@@ -20,11 +20,11 @@
 #error LIBC_ERRNO_MODE is not defined
 #endif
 
-#if LIBC_ERRNO_MODE != LIBC_ERRNO_MODE_NONE && \
-    LIBC_ERRNO_MODE != LIBC_ERRNO_MODE_INTERNAL && \
-    LIBC_ERRNO_MODE != LIBC_ERRNO_MODE_EXTERNAL && \
-    LIBC_ERRNO_MODE != LIBC_ERRNO_MODE_THREAD_LOCAL && \
-    LIBC_ERRNO_MODE != LIBC_ERRNO_MODE_GLOBAL && \
+#if LIBC_ERRNO_MODE != LIBC_ERRNO_MODE_NONE &&                                 \
+    LIBC_ERRNO_MODE != LIBC_ERRNO_MODE_INTERNAL &&                             \
+    LIBC_ERRNO_MODE != LIBC_ERRNO_MODE_EXTERNAL &&                             \
+    LIBC_ERRNO_MODE != LIBC_ERRNO_MODE_THREAD_LOCAL &&                         \
+    LIBC_ERRNO_MODE != LIBC_ERRNO_MODE_GLOBAL &&                               \
     LIBC_ERRNO_MODE != LIBC_ERRNO_MODE_LOCATION
 #error LIBC_ERRNO_MODE must be one of the following values: \
 LIBC_ERRNO_MODE_NONE, \

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https://github.com/llvm/llvm-project/pull/98287