The fprintf() function returns the length of the written string.

函数将返回书写的字符串长度。

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Similarly, functions such as printf and fprintf invoke the write system call to do their work.

类似地，printf和fprintf这样的函数调用write系统调用完成其工作。

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Suppose the signal handler prints a message with fprintf and the program was in the middle of an fprintf call using the same stream when the signal was delivered.

假定信号处理器使用fprintf打印一条消息，而当信号发出时程序正在使用同一个流进行fprintf调用。

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Suppose the signal handler prints a message with fprintf and the program was in the middle of an fprintf call using the same stream when the signal was delivered.

假定信号处理器使用fprintf打印一条消息，而当信号发出时程序正在使用同一个流进行fprintf调用。

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