It works correctly with undefined values as well, whereas with warnings turned on, a regular expression match on an undefined value will print a warning.
该函数也会正确地处理未定义的值，尽管在警告打开时，常规表达式在匹配未定义的值时会输出警告信息。
This paraphrases a warning that cellphone manufacturers include in the small print that is often tossed aside when a new phone is purchased.
在消费者购置新机后，常对手机厂商印在不起眼位置的小字警告不以为然。
If the file can't be found or read, AppConfig will print a warning by default but the program will go on.
如果该文件没有找到或者不可读，AppConfig将会默认地打印一个警告信息，程序还是会继续运行。
There are some issues with Xen support: REE is reported to print various (harmless) warning messages when run in Xen.
目前Xen的支持方面还存在一些问题：有报告说REE在Xen中运行时输出了很多(无害的)警告信息。
Without it, or the equivalent -c switch, perl prints a warning about wide data in the print statement (see perldoc perlunicode and perldoc perlrun for details).
如果没有这个调用，或者等效的- c开关，perl就会打印一个打印语句中有宽数据的警告信息(详细信息请参阅perldocperlunicode和perldocperlrun)。
The function pointer is passed fine, it's only converted to 1 for printing (which is why the warning relates to the line where you print it, not the line where you pass it).
函数指针传递好，只有转化为1印刷（这就是为什么警告与你打印它的行，而不是你通过行）。
The function pointer is passed fine, it's only converted to 1 for printing (which is why the warning relates to the line where you print it, not the line where you pass it).
函数指针传递好，只有转化为1印刷（这就是为什么警告与你打印它的行，而不是你通过行）。
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