tmp/tmpbqqxyxj8/{from.md → to.md}
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#### `struct char_traits<char32_t>` <a id="char.traits.specializations.char32_t">[[char.traits.specializations.char32_t]]</a>
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``` cpp
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namespace std {
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template<> struct char_traits<char32_t> {
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using char_type = char32_t;
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using int_type = uint_least32_t;
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using off_type = streamoff;
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using pos_type = u32streampos;
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using state_type = mbstate_t;
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static constexpr void assign(char_type& c1, const char_type& c2) noexcept;
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static constexpr bool eq(char_type c1, char_type c2) noexcept;
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static constexpr bool lt(char_type c1, char_type c2) noexcept;
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static constexpr int compare(const char_type* s1, const char_type* s2, size_t n);
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static constexpr size_t length(const char_type* s);
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static constexpr const char_type* find(const char_type* s, size_t n,
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const char_type& a);
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static char_type* move(char_type* s1, const char_type* s2, size_t n);
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static char_type* copy(char_type* s1, const char_type* s2, size_t n);
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static char_type* assign(char_type* s, size_t n, char_type a);
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static constexpr int_type not_eof(int_type c) noexcept;
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static constexpr char_type to_char_type(int_type c) noexcept;
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static constexpr int_type to_int_type(char_type c) noexcept;
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static constexpr bool eq_int_type(int_type c1, int_type c2) noexcept;
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static constexpr int_type eof() noexcept;
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};
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}
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```
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The type `u32streampos` shall be an *implementation-defined* type that
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satisfies the requirements for `pos_type` in [[iostreams.limits.pos]]
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and [[iostream.forward]].
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The two-argument members `assign`, `eq`, and `lt` shall be defined
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identically to the built-in operators `=`, `==`, and `<` respectively.
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The member `eof()` shall return an *implementation-defined* constant
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that cannot appear as a Unicode code point.
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