std::ios_base::operator=
From cppreference.com
C++
Feature test macros (C++20)
Concepts library (C++20)
Metaprogramming library (C++11)
Ranges library (C++20)
Filesystem library (C++17)
Concurrency support library (C++11)
Execution control library (C++26)
Input/output library
Print functions (C++23)
Buffers
(C++23)
(C++98/26*)
(C++20)
Streams
Abstractions
File I/O
String I/O
Array I/O
(C++23)
(C++23)
(C++23)
(C++98/26*)
(C++98/26*)
(C++98/26*)
Synchronized Output
(C++20)
Types
Error category interface
(C++11)
(C++11)
std::ios_base
Member functions
ios_base::operator=
Formatting
Locales
Internal extensible array
Miscellaneous
Member classes
Member types
private:
ios_base& operator=( const ios_base& );
(until C++11)
ios_base& operator=( const ios_base& );
public:
ios_base& operator=( const ios_base& ) = delete;
(since C++11)
ios_base& operator=( const ios_base& ) = delete;
The copy assignment operator is private(until C++11)deleted(since C++11): streams are not copy-assignable.
[edit] Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
DR | Applied to | Behavior as published | Correct behavior |
---|---|---|---|
LWG 50 | C++98 | the copy assignment operator was not specified | specified as private |