std::basic_stringbuf::operator=

From cppreference.com


std::basic_stringbuf& operator=( std::basic_stringbuf&& rhs );		(since C++11)

std::basic_stringbuf& operator=( const std::basic_stringbuf& rhs ) = delete;

1) Move assignment operator: Moves the contents of rhs into *this. After the move, lhs has the associated string, the open mode, the locale, and all other state formerly held by rhs. The six pointers of std::basic_streambuf in lhs are guaranteed to be different from the corresponding pointers in the moved-from rhs unless null.

2) The copy assignment operator is deleted; basic_stringbuf is not CopyAssignable.

#include <sstream>
#include <string>
#include <iostream>
 
int main()
{
 
    std::istringstream one("one");
    std::ostringstream two("two");
 
    std::cout << "Before move, one = \"" << one.str() << '"'
              << " two = \"" << two.str() << "\"\n";
 
    *one.rdbuf() = std::move(*two.rdbuf());
 
    std::cout << "Before move, one = \"" << one.str() << '"'
              << " two = \"" << two.str() << "\"\n";
}

Output:

Before move, one = "one" two = "two"
Before move, one = "two" two = ""

[edit] See also


(constructor)	constructs a basic_stringbuf object (public member function)

Language
Standard library headers
Concepts
Utilities library
Strings library
Containers library
Algorithms library
Iterators library
Numerics library
Input/output library
Localizations library
Regular expressions library (C++11)
Atomic operations library (C++11)
Thread support library (C++11)

std::basic_stringbuf::operator=

Contents

[edit] Parameters

[edit] Return value

[edit] Example

[edit] See also