BizHawk/waterbox/libc/functions/stdio/fsetpos.c

52 lines
1005 B
C
Raw Normal View History

/* fsetpos( FILE *, const fpos_t * )
This file is part of the Public Domain C Library (PDCLib).
Permission is granted to use, modify, and / or redistribute at will.
*/
#include <stdio.h>
#ifndef REGTEST
#include "_PDCLIB_io.h"
int _PDCLIB_fsetpos_unlocked( FILE * stream,
const _PDCLIB_fpos_t * pos )
{
if ( stream->status & _PDCLIB_FWRITE )
{
if ( _PDCLIB_flushbuffer( stream ) == EOF )
{
return EOF;
}
}
if ( _PDCLIB_seek( stream, pos->offset, SEEK_SET ) == EOF )
{
return EOF;
}
stream->pos.mbs = pos->mbs;
return 0;
}
int fsetpos( FILE * stream,
const _PDCLIB_fpos_t * pos )
{
_PDCLIB_flockfile( stream );
int res = _PDCLIB_fsetpos_unlocked( stream, pos );
_PDCLIB_funlockfile( stream );
return res;
}
#endif
#ifdef TEST
#include "_PDCLIB_test.h"
int main( void )
{
/* fsetpos() tested together with fsetpos(). */
return TEST_RESULTS;
}
#endif