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-rw-r--r--absl/base/macros.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/absl/base/macros.h b/absl/base/macros.h
index 5ae0f05bf8c1..114a7be131f7 100644
--- a/absl/base/macros.h
+++ b/absl/base/macros.h
@@ -46,7 +46,7 @@
 namespace absl {
 namespace macros_internal {
 template <typename T, size_t N>
-char (&ArraySizeHelper(T (&array)[N]))[N];
+auto ArraySizeHelper(const T (&array)[N]) -> char (&)[N];
 }  // namespace macros_internal
 }  // namespace absl
 #define ABSL_ARRAYSIZE(array) \