NAME¶

std::basic_string::append_range - std::basic_string::append_range

Synopsis¶

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

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)