From 0cdee904a480f50c756bd05e752c4d067a823fec Mon Sep 17 00:00:00 2001
From: Victor Zverovich <viz@meta.com>
Date: Fri, 12 Jan 2024 07:20:12 -0800
Subject: [PATCH] Add a missing num_bits specialization

---
 include/fmt/base.h   | 3 ++-
 include/fmt/format.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/fmt/base.h b/include/fmt/base.h
index e39580849f99..cd2c7df503bd 100644
--- a/include/fmt/base.h
+++ b/include/fmt/base.h
@@ -1491,7 +1491,8 @@ constexpr unsigned long long make_descriptor() {
 template <typename T, typename Char>
 #if FMT_CLANG_VERSION && FMT_CLANG_VERSION <= 1500
 // https://github.com/fmtlib/fmt/issues/3796
-struct type_is_unformattable_for {};
+struct type_is_unformattable_for {
+};
 #else
 struct type_is_unformattable_for;
 #endif
diff --git a/include/fmt/format.h b/include/fmt/format.h
index 6c94d2d00760..16e2e1755a8f 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -462,6 +462,7 @@ template <typename T> constexpr auto num_bits() -> int {
 }
 // std::numeric_limits<T>::digits may return 0 for 128-bit ints.
 template <> constexpr auto num_bits<int128_opt>() -> int { return 128; }
+template <> constexpr auto num_bits<uint128_opt>() -> int { return 128; }
 template <> constexpr auto num_bits<uint128_fallback>() -> int { return 128; }
 
 // A heterogeneous bit_cast used for converting 96-bit long double to uint128_t