cppdraft_translate/cppdraft/string/assign.md

[string.assign]

27 Strings library [strings]

27.4 String classes [string.classes]

27.4.3 Class template basic_string [basic.string]

27.4.3.7 Modifiers [string.modifiers]

27.4.3.7.3 basic_string​::​assign [string.assign]

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constexpr basic_string& assign(const basic_string& str);

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Effects: Equivalent to: return *this = str;

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constexpr basic_string& assign(basic_string&& str) noexcept(allocator_traits<Allocator>::propagate_on_container_move_assignment::value || allocator_traits<Allocator>::is_always_equal::value);

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Effects: Equivalent to: return *this = std​::​move(str);

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constexpr basic_string& assign(const basic_string& str, size_type pos, size_type n = npos);

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Effects: Equivalent to:return assign(basic_string_view<charT, traits>(str).substr(pos, n));

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template<class T> constexpr basic_string& assign(const T& t);

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Constraints:

• (4.1)

is_convertible_v<const T&, basic_string_view<charT, traits>> istrue and

• (4.2)

is_convertible_v<const T&, const charT*> isfalse.

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Effects: Equivalent to:basic_string_view<charT, traits> sv = t;return assign(sv.data(), sv.size());

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template<class T> constexpr basic_string& assign(const T& t, size_type pos, size_type n = npos);

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Constraints:

• (6.1)

is_convertible_v<const T&, basic_string_view<charT, traits>> istrue and

• (6.2)

is_convertible_v<const T&, const charT*> isfalse.

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Effects: Equivalent to:basic_string_view<charT, traits> sv = t;return assign(sv.substr(pos, n));

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constexpr basic_string& assign(const charT* s, size_type n);

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Preconditions: [s, s + n) is a valid range.

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Effects: Replaces the string controlled by *this with a copy of the range [s, s + n).

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Returns: *this.

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constexpr basic_string& assign(const charT* s);

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Effects: Equivalent to: return assign(s, traits​::​length(s));

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constexpr basic_string& assign(initializer_list<charT> il);

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Effects: Equivalent to: return assign(il.begin(), il.size());

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constexpr basic_string& assign(size_type n, charT c);

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Effects: Equivalent to:clear(); resize(n, c);return *this;

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template<class InputIterator> constexpr basic_string& assign(InputIterator first, InputIterator last);

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Constraints: InputIterator is a type that qualifies as an input iterator ([container.reqmts]).

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Effects: Equivalent to: return assign(basic_string(first, last, get_allocator()));

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template<[container-compatible-range](container.intro.reqmts#concept:container-compatible-range "23.2.2.1 Introduction [container.intro.reqmts]")<charT> R> constexpr basic_string& assign_range(R&& rg);

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Effects: Equivalent to: return assign(basic_string(from_range, std​::​forward(rg), get_allocator()));