std::basic_string<CharT,Traits,Allocator>::append_range

 

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basic_string

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std::basic_string

Member functions basic_string::basic_string basic_string::~basic_string basic_string::operator= basic_string::assign basic_string::assign_range (C++23) basic_string::get_allocator Element access basic_string::at basic_string::operator[] basic_string::front (DR*) basic_string::back (DR*) basic_string::data basic_string::c_str basic_string::operator  basic_string_view (C++17) Iterators basic_string::beginbasic_string::cbegin (C++11) basic_string::endbasic_string::cend (C++11) basic_string::rbeginbasic_string::crbegin (C++11) basic_string::rendbasic_string::crend (C++11) Capacity basic_string::empty basic_string::sizebasic_string::length basic_string::max_size basic_string::reserve basic_string::capacity basic_string::shrink_to_fit (DR*) Modifiers basic_string::clear basic_string::insert basic_string::insert_range (C++23) basic_string::erase basic_string::push_back basic_string::pop_back (DR*) basic_string::append basic_string::append_range (C++23) basic_string::operator+= basic_string::replace basic_string::replace_with_range (C++23) basic_string::copy basic_string::resize basic_string::resize_and_overwrite (C++23)   basic_string::swap

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template< container-compatible-range<CharT> R > constexpr std::basic_string& append_range( R&& rg );		(since C++23)

Appends all characters from the range rg.

Equivalent to

return append(std::basic_string( std::from_range, std​::​forward<R>(rg), get_allocator()));

Parameters

rg

-

a container compatible range

Return value

*this

Complexity

Linear in size of rg.

Exceptions

If the operation would result in size() > max_size(), throws std::length_error.

If an exception is thrown for any reason, this function has no effect (strong exception safety guarantee).

Notes

Feature-test macro	Value	Std	Feature
__cpp_lib_containers_ranges	202202L	(C++23)	member functions that accept container compatible range

Example

Run this code

#include <cassert>
#include <string>
 
int main()
{
    std::string head{"long long"};
    const auto tail = {' ', 'i', 'n', 't'};
 
#ifdef __cpp_lib_containers_ranges
    head.append_range(tail);
#else
    head.append(tail.begin(), tail.end());
#endif
 
    assert(head == "long long int");
}

See also

append

appends characters to the end (public member function)