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std::error_category::equivalent

提供: cppreference.com

 
 
 
エラー処理
例外処理
Original:
Exception handling
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exception
uncaught_exception
exception_ptr(C++11)
make_exception_ptr(C++11)
current_exception(C++11)
rethrow_exception(C++11)
nested_exception(C++11)
throw_with_nested(C++11)
rethrow_if_nested(C++11)
例外処理の失敗
Original:
Exception handling failures
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terminate
terminate_handler
get_terminate(C++11)
set_terminate
unexpected(廃止予定)
bad_exception
unexpected_handler(廃止予定)
get_unexpected(C++11)(廃止予定)
set_unexpected(廃止予定)
例外カテゴリ
Original:
Exception categories
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logic_error
invalid_argument
domain_error
length_error
out_of_range
runtime_error
range_error
overflow_error
underflow_error
エラーコード
Original:
Error codes
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エラーコード
errno
アサーション
Original:
Assertions
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assert
SYSTEM_ERROR施設
Original:
system_error facility
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error_category(C++11)
generic_category(C++11)
system_category(C++11)
error_condition(C++11)
errc(C++11)
error_code(C++11)
system_error(C++11)
 
std::error_category
メンバ関数
Original:
Member functions
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error_category::error_category
error_category::~error_category
error_category::name
error_category::default_error_condition
error_category::equivalent
error_category::message
error_category::operator==
error_category::operator!=
error_category::operator<
 
virtual bool equivalent( int code,
                         const std::error_condition& condition ) const;
(1) (C++11およびそれ以降)
virtual bool equivalent( const std::error_code& code,
                         int condition ) const;
(2) (C++11およびそれ以降)
エラーコードは*thisによって表されるエラーカテゴリのエラー状態と等価であるかどうかを確認します.
Original:
Checks whether error code is equivalent to an error condition for the error category represented by *this.
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1)
default_error_condition(code) == conditionに相当.
Original:
Equivalent to default_error_condition(code) == condition.
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2)
*this == code.category() && code.value() == conditionに相当.
Original:
Equivalent to *this == code.category() && code.value() == condition.
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[編集] パラメータ

code -
比較するためにエラーコードを指定します
Original:
specifies the error code to compare
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condition -
比較するエラー状態を指定します
Original:
specifies the error condition to compare
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[編集] 値を返します

trueエラーコードが*thisによって表されるエラーカテゴリに指定されたエラー状態と同等であれば、そうでなければfalse.
Original:
true if the error code is equivalent to the given error condition for the error category represented by *this, false otherwise.
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[編集] 例外

noexcept specification:  
noexcept
  (C++11およびそれ以降)