Msdn file eof

Table of Contents. Improve Article. Save Article. Like Article. So, only comparing the value returned by getc with EOF is not sufficient to check for actual end of file. To solve this problem, C provides feof which returns non-zero value only if end of file has reached, otherwise it returns 0.

For example, consider the following C program to print contents of file test. In the program, returned value of getc is compared with EOF first, then there is another check using feof. Take a step-up from those "Hello World" programs. This can be particularly problematic when using an asynchronous file handle.

Additional information regarding synchronous versus asynchronous file handles can be found in the Synchronization and File Position section and in the CreateFile reference topic. Characters can be read from the console input buffer by using ReadFile with a handle to console input. The console mode determines the exact behavior of the ReadFile function.

For more information, see CreateFile. When reading from a communications device, the behavior of ReadFile is determined by the current communication time-out as set and retrieved by using the SetCommTimeouts and GetCommTimeouts functions. Unpredictable results can occur if you fail to set the time-out values. For details see File Buffering. The remainder of the message can be read by a subsequent call to the ReadFile or PeekNamedPipe function.

The following example uses CreateFile to create a new file and open it for writing and WriteFile to write a simple string synchronously to the file. A subsequent call to open this file with CreateFile will fail until the handle is closed. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Eof circumstances Ask Question. Asked 9 years, 3 months ago. Active 7 years, 6 months ago. Viewed 5k times. My question is, what exactly does SerialData. Eof mean? MSDN says: The end of file character was received and placed in the input buffer. I'm dealing with binary data. What is the "end of file character"? Jonathon Reinhart. Jonathon Reinhart Jonathon Reinhart k 29 29 gold badges silver badges bronze badges.

Take a look at this StackOverFlow post I also can't see in your example where you are even reading byes if there are any to be read stackoverflow. I'm not sure why this was downvoted. I'm simply asking what exactly SerialData. Eof means. I would interpret EOF event as stream termination, i. Interested in finding out as I intend to do some serial port work soon.

Since the data being sent by my device contains some contains lots of data determined by user timing, it's safe to say that the bytestream is psuedo-random. I'm seeing this SerialData.

Eof only sometimes, and twice the data received before the event has contained a 1A byte. So I think it is safe to simply ignore DataReceived if e. Unless of course your device actually sends a 1A at the end of its stream.