assert

 

C++

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initializer_list (C++11)

bitset

hash (C++11)

比較演算子

rel_ops::operator!= rel_ops::operator> rel_ops::operator<= rel_ops::operator>=

ペアとタプル

pair

tuple (C++11)

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piecewise_construct (C++11)

フォワード、スワップ、およびムーブ

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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

exception

uncaught_exception

exception_ptr (C++11)

make_exception_ptr (C++11)

current_exception (C++11)

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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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

logic_error

invalid_argument

domain_error

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out_of_range

runtime_error

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underflow_error

エラーコード Original: Error codes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

エラーコード

errno

アサーション Original: Assertions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

assert

SYSTEM_ERROR施設 Original: system_error facility The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

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 <cassert>
#ifdef NDEBUG #define assert(condition) ((void)0) #else #define assert(condition) /*implementation defined*/ #endif

マクロassertの定義は、標準ライブラリで定義されていない別のマクロ、NDEBUGに依存.

Original:

The definition of the macro assert depends on another macro, NDEBUG, which is not defined by the standard library.

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NDEBUGが<cassert>が含まれているソース·コード内の時点でマクロ名として定義されている場合、assertは何もしません.

Original:

If NDEBUG is defined as a macro name at the point in the source code where <cassert> is included, then assert does nothing.

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NDEBUGが定義されていない場合、その後assertチェックはその引数が（これは、スカラ型でなければなりません）がゼロに等しい場合。その場合は、assert標準エラー出力に実装固有の診断情報を出力し、std::abort呼び出します。診断情報がexpressionのテキストだけでなく、標準的なマクロ__FILE__、__LINE__、標準変数__func__の値を含むように要求される.

Original:

If NDEBUG is not defined, then assert checks if its argument (which must have scalar type) compares equal to zero. If it does, assert outputs implementation-specific diagnostic information on the standard error output and calls std::abort. The diagnostic information is required to include the text of expression, as well as the values of the standard macros __FILE__, __LINE__, and the standard variable __func__.

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パラメータ

condition

-

スカラー型の式 Original: expression of scalar type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

値を返します

(なし)

例

このコードを実行します

#include <iostream>
// uncomment to disable assert()
// #define NDEBUG
#include <cassert>
 
int main()
{
    assert(2+2==4);
    std::cout << "Execution continues past the first assert\n";
    assert(2+2==5);
    std::cout << "Execution continues past the second assert\n";
}

出力:

Execution continues past the first assert
test: test.cc:8: int main(): Assertion `2+2==5' failed.
Aborted

参照

静的なアサーション	(C++11およびそれ以降)をチェックコンパイル時アサーションを実行します Original: performs compile-time assertion checking (C++11およびそれ以降) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
abort	（清掃なし）プログラムの異常終了が発生します Original: causes abnormal program termination (without cleaning up) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数)