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GEMini_Atari_CD-ROM_Walnut_Creek_December_1993.iso
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mntlib18
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fungetc.c
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C/C++ Source or Header
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1993-08-03
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335 b
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16 lines
/* from dlibs */
#include <stdio.h>
#include <stdlib.h>
int fungetc(c, fp)
int c;
register FILE *fp;
{
if((fp->_flag & (_IOERR | _IOEOF)) /* error or eof */
|| (fp->_ptr <= fp->_base) /* or too many ungets */
|| (c < 0)) /* or trying to unget EOF */
return(EOF);
++(fp->_cnt);
return(*--(fp->_ptr) = c);
}