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std::generic_category

提供: cppreference.com
< cpp‎ | error

 
 
ユーティリティライブラリ
支援を入力します (basic types, RTTI, type traits)
動的なメモリ管理
エラー処理
プログラムユーティリティ
可変個引数関数
日付と時刻
関数オブジェクト
initializer_list(C++11)
bitset
hash(C++11)
関係演算子
Original:
Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
ペアとタプル
Original:
Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
フォワード、スワップ、および移動
Original:
Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
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)
 
Defined in header <system_error>
const std::error_category& generic_category();
(C + + 11以来)
一般的なエラーのための静的なエラーカテゴリオブジェクトへの参照を取得します。オブジェクトは、文字列error_category::name()へのポインタを返す仮想関数"generic"をオーバーライドする必要があります。それはPOSIXerrnoコードに対応するエラー条件を識別するために使用され.
Original:
Obtains a reference to the static error category object for generic errors. The object is required to override the virtual function error_category::name() to return a pointer to the string "generic". It is used to identify error conditions that correspond to the POSIX errno codes.
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目次

[編集] パラメータ

(なし)
Original:
(none)
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[編集] 値を返します

std::error_category由来不特定の実行時の型の静的オブジェクトへの参照.
Original:
A reference to the static object of unspecified runtime type, derived from std::error_category.
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[編集] 例外

noexcept specification:  
noexcept
  (C + + 11以来)

[編集]

#include <iostream>
#include <system_error>
#include <cerrno>
#include <string>
int main()
{
    std::error_condition econd = std::generic_category().default_error_condition(EDOM);
    std::cout << "Category: " << econd.category().name() << '\n'
              << "Value: " << econd.value() << '\n'
              << "Message: " << econd.message() << '\n';
}

Output:

Category: generic
Value: 33
Message: Numerical argument out of domain

[編集] も参照してください

オペレーティング·システムのエラー·カテゴリを識別します
Original:
identifies the operating system error category
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(機能) [edit]
(C++11)
すべての標準的なstd::error_conditionマクロ定数をリスト<cerrno>列挙
Original:
the std::error_condition enumeration listing all standard <cerrno> macro constants
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(クラス) [edit]