24 Strings library [strings]

24.3 String classes [string.classes]

24.3.2 Class template basic_­string [basic.string]

24.3.2.6 basic_­string modifiers [string.modifiers]

24.3.2.6.1 basic_­string​::​operator+= [string.op+=]

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basic_string& operator+=(const basic_string& str);
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Effects: Calls append(str).
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Returns: *this.
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basic_string& operator+=(basic_string_view<charT, traits> sv);
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Effects: Calls append(sv).
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Returns: *this.
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basic_string& operator+=(const charT* s);
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Effects: Calls append(s).
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Returns: *this.
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basic_string& operator+=(charT c);
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Effects: Calls push_­back(c);
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Returns: *this.
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basic_string& operator+=(initializer_list<charT> il);
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Effects: Calls append(il).
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Returns: *this.