21 Strings library [strings]

21.4 Class template basic_string [basic.string]

21.4.6 basic_string modifiers [string.modifiers]

21.4.6.1 basic_string::operator+= [string::op+=]

basic_string& operator+=(const basic_string& str);

1

Effects: Calls append(str).

2

Returns: *this.

basic_string& operator+=(const charT* s);

3

Effects: Calls append(s).

4

Returns: *this.

basic_string& operator+=(charT c);

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Effects: Calls push_back(c);

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Returns: *this.

basic_string& operator+=(initializer_list<charT> il);

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Effects: Calls append(il).

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Returns: *this.