gets man page on HP-UX

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gets(3S)							      gets(3S)

       gets(), fgets() - get a string from a stream

   Obsolescent Interface
       Reads characters from the standard input stream,
		      into the array pointed to by s, until a new-line charac‐
		      ter is read or an end-of-file condition is  encountered.
		      The  new-line  character	is discarded and the string is
		      terminated with a null character.

       Reads characters from the
		      stream into the array pointed to by s, until n−1 charac‐
		      ters  are	 read, a new-line character is read and trans‐
		      ferred to s, or an end-of-file condition is encountered.
		      The string is then terminated with a null character.

   Obsolescent Interface
       gets a string from a stream.

       After  or is applied to a stream, the stream becomes byte-oriented (see

       Upon successful completion, and return s.  If the stream is at  end-of-
       file,  the  end-of-file	indicator  for	the  stream  is set and a null
       pointer is returned.

       When the file corresponding to an open stream gets extended  after  the
       end-of-file  is	reached,  any subsequent calls to these functions will
       succeed and the end-of-file indicator will remain set.  However, in the
       UNIX2003 standards environment (see standards(5)), these functions will
       return a null pointer and the end-of-file indicator will	 still	remain

       If  a  read error occurs, the error indicator for the stream is set, is
       set to indicate the error, and a null pointer is returned.

       and can be used to distinguish between an error condition and  an  end-
       of-file condition.

       and fail if data needs to be read into the stream's buffer, and:

       The	      flag  is	set  for the file descriptor underlying stream
		      and the process would be delayed in the read operation.

       The file descriptor underlying
		      stream is not a valid file descriptor open for reading.

       The read operation was terminated due to the receipt of a signal,
		      and either no data was transferred or the implementation
		      does not report partial transfer for this file.

       The process is a member of a background process
		      and is attempting to read from its controlling terminal,
		      and either the process is ignoring or blocking the  sig‐
		      nal or the process group of the process is orphaned.

       Additional values can be set by the underlying function (see read(2)).

       is  an  obsolescent  interface  supported  only	for compatibility with
       existing DCE applications. New multithreaded applications should use

       ferror(3S), flockfile(3S), fopen(3S),  fread(3S),  getc(3S),  puts(3S),
       scanf(3S), orientation(5), standards(5), thread_safety(5), glossary(9).


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