21 Strings library [strings]

21.4 Class template basic_string [basic.string]

21.4.6 basic_string modifiers [string.modifiers] basic_string::append [string::append]

basic_string& append(const basic_string& str);

Effects: Calls append(str.data(), str.size()).

Returns: *this.

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

Requires: pos <= str.size()

Throws: out_of_range if pos > str.size().

Effects: Determines the effective length rlen of the string to append as the smaller of n and str.size() - pos and calls append(str.data() + pos, rlen).

Returns: *this.

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

Requires: s points to an array of at least n elements of charT.

Throws: length_error if size() + n > max_size().

Effects: The function replaces the string controlled by *this with a string of length size() + n whose first size() elements are a copy of the original string controlled by *this and whose remaining elements are a copy of the initial n elements of s.

Returns: *this.

basic_string& append(const charT* s);

Requires: s points to an array of at least traits::length(s) + 1 elements of charT.

Effects: Calls append(s, traits::length(s)).

Returns: *this.

basic_string& append(size_type n, charT c);

Effects: Equivalent to append(basic_string(n, c)).

Returns: *this.

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

Requires: [first,last) is a valid range.

Effects: Equivalent to append(basic_string(first, last)).

Returns: *this.

basic_string& append(initializer_list<charT> il);

Effects: Calls append(il.begin(), il.size()).

Returns: *this.

void push_back(charT c);

Effects: Equivalent to append(static_cast<size_type>(1), c).