12-18-2014
I am on AIX system and the file has been pushed to this from Mainframe
Please advise how can I proceed in this case
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UNGETC(3) BSD Library Functions Manual UNGETC(3)
NAME
ungetc -- un-get character from input stream
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdio.h>
int
ungetc(int c, FILE *stream);
DESCRIPTION
The ungetc() function pushes the character c (converted to an unsigned char) back onto the input stream pointed to by stream. The pushed-
back characters will be returned (in reverse order) by subsequent reads on the stream. A successful intervening call to one of the file
positioning functions (fseek(3), fsetpos(3), or rewind(3)), using the same stream, will discard the pushed-back characters.
Only one character of push-back is guaranteed, but as long as there is sufficient memory, an effectively infinite amount of push-back is
allowed.
If a character is successfully pushed-back, the end-of-file indicator for the stream is cleared. The file-position indicator is decremented
by each successful call to ungetc(); if its value was 0 before a call, its value is unspecified after the call.
RETURN VALUES
The ungetc() function returns the character pushed-back after the conversion, or EOF if the operation fails. If the value of the argument c
character equals EOF, the operation will fail and the stream will remain unchanged.
SEE ALSO
fseek(3), getc(3), setvbuf(3), ungetwc(3)
STANDARDS
The ungetc() function conforms to ISO/IEC 9899:1990 (``ISO C90'').
BSD
June 4, 1993 BSD