From e72e43af1c1531fb982954f868c4a45b72300023 Mon Sep 17 00:00:00 2001
From: Victor Zverovich <viz@meta.com>
Date: Mon, 1 Sep 2025 13:03:57 -0700
Subject: [PATCH] Apply clang-tidy

---
 test/compile-fp-test.cc  | 3 ++-
 test/format-impl-test.cc | 6 +++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/test/compile-fp-test.cc b/test/compile-fp-test.cc
index 3afb7690..e1522c72 100644
--- a/test/compile-fp-test.cc
+++ b/test/compile-fp-test.cc
@@ -11,10 +11,11 @@
 #if FMT_USE_CONSTEVAL
 
 template <size_t max_string_length, typename Char = char> struct test_string {
+  Char buffer[max_string_length] = {};
+
   template <typename T> constexpr bool operator==(const T& rhs) const noexcept {
     return fmt::basic_string_view<Char>(rhs).compare(buffer) == 0;
   }
-  Char buffer[max_string_length]{};
 };
 
 template <size_t max_string_length, typename Char = char, typename... Args>
diff --git a/test/format-impl-test.cc b/test/format-impl-test.cc
index 2be15d00..3b0e07e3 100644
--- a/test/format-impl-test.cc
+++ b/test/format-impl-test.cc
@@ -292,7 +292,7 @@ struct double_double {
 
 auto format_as(double_double d) -> double { return d; }
 
-bool operator>=(const double_double& lhs, const double_double& rhs) {
+auto operator>=(const double_double& lhs, const double_double& rhs) -> bool {
   return lhs.a + lhs.b >= rhs.a + rhs.b;
 }
 
@@ -356,11 +356,11 @@ TEST(format_impl_test, write_console_signature) {
 
 // A public domain branchless UTF-8 decoder by Christopher Wellons:
 // https://github.com/skeeto/branchless-utf8
-constexpr bool unicode_is_surrogate(uint32_t c) {
+constexpr auto unicode_is_surrogate(uint32_t c) -> bool {
   return c >= 0xD800U && c <= 0xDFFFU;
 }
 
-FMT_CONSTEXPR char* utf8_encode(char* s, uint32_t c) {
+FMT_CONSTEXPR auto utf8_encode(char* s, uint32_t c) -> char* {
   if (c >= (1UL << 16)) {
     s[0] = static_cast<char>(0xf0 | (c >> 18));
     s[1] = static_cast<char>(0x80 | ((c >> 12) & 0x3f));