gcc/libf2c/libI77/ftell_.c

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#include "config.h"
#include "f2c.h"
#include "fio.h"
static FILE *
unit_chk(integer Unit, char *who)
{
if (Unit >= MXUNIT || Unit < 0)
f__fatal(101, who);
return f__units[Unit].ufd;
}
integer
G77_ftell_0 (integer *Unit)
{
FILE *f;
return (f = unit_chk(*Unit, "ftell")) ? (integer) FTELL(f) : -1L;
}
integer
G77_fseek_0 (integer *Unit, integer *offset, integer *xwhence)
{
FILE *f;
int w = (int)*xwhence;
#ifdef SEEK_SET
static int wohin[3] = { SEEK_SET, SEEK_CUR, SEEK_END };
#endif
if (w < 0 || w > 2)
w = 0;
#ifdef SEEK_SET
w = wohin[w];
#endif
return !(f = unit_chk(*Unit, "fseek"))
|| FSEEK(f, (off_t) *offset, w) ? 1 : 0;
}