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

Appends all characters from the range rg .

Equivalent to

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

Parameters

Return value

* this

Complexity

Linear in size of rg .

Exceptions

If the operation would cause size() to exceed max_size() , throws std::length_error .

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

Notes

Example

#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