run time error check 运行时错误检查
The RTC sample shows how to use the C run-time library's run-time error check feature.
RTC 范例显示如何使用 C 执行阶段程式库的执行阶段错误检查功能。
The library is not required to check the value of the index. Using an index that is out of range is undefined and usually results in a serious run-time error.
标准库不要求检查索引值，所用索引的下标越界是没有定义的，这样往往会导致严重的运行时错误。
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