Perhaps silent failure or flag return values would be useful, or another sort of fallback operations for error cases.

无声故障或标志返回值可能会有用，或另一种用于错误例子的后退操作会有用。

youdao

The most likely causes of instance failure are human error, service failure, or file corruption.

最有可能导致实例故障的情况包括人为错误、服务失败、或者文件损坏。

youdao

This call either returns zero on success or a non-zero error code on failure.

函数调用成功时返回零，失败时返回非零的错误代码。

youdao

It was only when the design was able to pass strict enterprise-grade Zero Error standard of 400 units surviving 500 hours of the toughest continuous testing without a single error or failure that the drive was manufactured.

ENGADGET: Plextor M5 Pro bulges SSD envelope with 94K IOPS and 540MB/s

But investigators are focused on a failure of the train tracks themselves, as opposed to an error by engineers or a failure of the train's signal system.

WSJ: Probe of Metro-North Derailment in Connecticut Focuses on Rail

Hania said, however, it is more likely that a network error or system failure caused the problem.

CNN: Microsoft Web sites suffer large scale blackout