qc.hlp (Table of Contents; Topic list)
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feof
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     The feof routine (implemented as a macro) determines whether the
     end of <stream> has been reached. Once end-of-file is reached,
     read operations return an end-of-file indicator until the stream
     is closed or until rewind, fsetpos, fseek, or clearerr is called
     against it.
 
     Return Value
 
     The feof function returns a nonzero value after the first read
     operation attempting to read past the end of the file. It returns
     0 if the current position is not end-of-file. There is no error
     return.
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