cppdraft_translate/cppdraft/string/append.md

[string.append]

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]

27.4.3.7.2 basic_string​::​append [string.append]

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constexpr basic_string& append(const basic_string& str);

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Effects: Equivalent to: return append(str.data(), str.size());

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

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

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

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Constraints:

• (3.1)

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

• (3.2)

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

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

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

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Constraints:

• (5.1)

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

• (5.2)

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

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

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

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

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Effects: Appends a copy of the range [s, s + n) to the string.

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Returns: *this.

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constexpr basic_string& append(const charT* s);

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

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

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Effects: Appends n copies of c to the string.

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Returns: *this.

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template<class InputIterator> constexpr basic_string& append(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 append(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& append_range(R&& rg);

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

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

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

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constexpr void push_back(charT c);

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Effects: Equivalent toappend(size_type{1}, c).