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std::basic_stringbuf::swap(3) C++ Standard Libarystd::basic_stringbuf::swap(3) NAME std::basic_stringbuf::swap - std::basic_stringbuf::swap Synopsis void swap( basic_stringbuf& rhs ); (since C++11) (until C++20) void swap( basic_stringbuf& rhs ) noexcept(/* see below */); (since C++20) Swaps the state and the contents of *this and rhs. The behavior is undefined if Allocator does not propagate on swap and (since C++11) the allocators of *this and other are unequal. Parameters rhs - another basic_stringbuf Return value (none) Exceptions (since May throw implementation-defined exceptions. C++11) (un- til C++20) noexcept specification: (since noexcept(std::allocator_traits<Allocator>::propagate_on_con- tainer_swap::value C++20) || std::allocator_traits<Allocator>::is_always_equal::value) Notes This function is called automatically when swapping std::stringstream objects, it is rarely necessary to call it directly. Example // Run this code #include <sstream> #include <string> #include <iostream> #include <iomanip> int main() { std::istringstream one("one"); std::ostringstream two("two"); std::cout << "Before swap, one = " << std::quoted( one.str() ) << " two = " << quoted( two.str() ) << '\n'; one.rdbuf()->swap(*two.rdbuf()); std::cout << "After swap, one = " << quoted( one.str() ) << " two = " << quoted( two.str() ) << '\n'; } Output: Before swap, one = "one" two = "two" After swap, one = "two" two = "one" See also constructor constructs a basic_stringbuf object (public member function) swap swaps two string streams (C++11) (public member function of std::basic_stringstream<CharT,Traits,Allocator>) http://cppreference.com 2022.07.31 std::basic_stringbuf::swap(3)
NAME | Synopsis | Parameters | Return value | Exceptions | Notes | Example | Output: | See also
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