assert
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| Заголовочный файл <cassert>
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| #ifdef NDEBUG #define assert(condition) ((void)0) |
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Определение
assert макросов зависит от другого макроса, NDEBUG, который не определен в стандартной библиотеке.Original:
The definition of the macro
assert depends on another macro, NDEBUG, which is not defined by the standard library.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Если NDEBUG определяется как имя макроса в точке в исходном коде, где
<cassert> включен, то assert ничего не делает.Original:
If NDEBUG is defined as a macro name at the point in the source code where
<cassert> is included, then assert does nothing.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Если NDEBUG не определен, то
assert проверки, если ее аргумент (которые должны быть скалярного типа) сравнивает равна нулю. Если это произойдет, assert выводит конкретной реализации диагностической информации на стандартный вывод ошибок и вызывает std::abort. Диагностическую информацию необходимо включить в текст expression, а также значений стандартных макросов __FILE__, __LINE__, и стандартные __func__ переменной.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__.The text has been machine-translated via Google Translate.
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Содержание |
[править] Параметры
| condition | - | Выражение скалярного типа
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. |
[править] Возвращаемое значение
(Нет)
Original:
(none)
The text has been machine-translated via Google Translate.
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[править] Пример
Вывод:
Execution continues past the first assert test: test.cc:8: int main(): Assertion `2+2==5' failed. Aborted
[править] См. также
| статическое утверждение | выполняется во время компиляции проверку утверждений (начиная с C++11)
Original: performs compile-time assertion checking (начиная с C++11) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| вызывает аварийное завершение программы (без очистки) 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. (функция) | |