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 @@ -1332,7 +1332,7 @@ using ulong_type = conditional_t<long_short, unsigned, unsigned long long>;

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 template <typename T> struct format_as_result {

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 template <typename U,

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 FMT_ENABLE_IF(std::is_enum<U>::value || std::is_class<U>::value)>

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 static auto map(U*) -> decltype(format_as(std::declval<U>()));

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 static auto map(U*) -> remove_cvref_t<decltype(format_as(std::declval<U>()))>;

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 static auto map(...) -> void;

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 using type = decltype(map(static_cast<T*>(nullptr)));

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 @@ -2173,13 +2173,21 @@ auto format_as(scoped_enum_as_string) -> std::string { return "foo"; }

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 struct struct_as_int {};

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 auto format_as(struct_as_int) -> int { return 42; }

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+
 struct struct_as_const_reference {

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 const std::string name = "foo";

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 };

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 auto format_as(const struct_as_const_reference& s) -> const std::string& {

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 return s.name;

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 }

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 } // namespace test

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 TEST(format_test, format_as) {

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 EXPECT_EQ(fmt::format("{}", test::scoped_enum_as_int()), "42");

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 EXPECT_EQ(fmt::format("{}", test::scoped_enum_as_string_view()), "foo");

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 EXPECT_EQ(fmt::format("{}", test::scoped_enum_as_string()), "foo");

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 EXPECT_EQ(fmt::format("{}", test::struct_as_int()), "42");

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 EXPECT_EQ(fmt::format("{}", test::struct_as_const_reference()), "foo");

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 TEST(format_test, format_as_to_string) {

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