std::ios_base:: operator=
From cppreference.net
C++
Input/output library
| I/O manipulators | ||||
| Print functions (C++23) | ||||
| C-style I/O | ||||
| Buffers | ||||
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(C++23)
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(
C++98/26*
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(C++20)
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| Streams | ||||
| Abstractions | ||||
| File I/O | ||||
| String I/O | ||||
| Array I/O | ||||
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(C++23)
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(C++23)
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(C++23)
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(
C++98/26*
)
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(
C++98/26*
)
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(
C++98/26*
)
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| Synchronized Output | ||||
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(C++20)
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| Types | ||||
| Error category interface | ||||
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(C++11)
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(C++11)
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std::ios_base
| Member functions | ||||
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ios_base::operator=
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| Formatting | ||||
| Locales | ||||
| Internal extensible array | ||||
| Miscellaneous | ||||
| Member classes | ||||
| Member types | ||||
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private
:
ios_base & operator = ( const ios_base & ) ; |
(C++11 前) | |
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public
:
ios_base & operator = ( const ios_base & ) = delete ; |
(C++11 起) | |
复制赋值运算符是 private (until C++11) deleted (since C++11) ：流不可复制赋值。
缺陷报告
以下行为变更缺陷报告被追溯应用于先前发布的C++标准。
| 缺陷报告 | 适用范围 | 发布时行为 | 正确行为 |
|---|---|---|---|
| LWG 50 | C++98 | 未指定拷贝赋值运算符 | 指定为私有成员 |