source: trunk/third/gcc/libf2c/libI77/ftell_.c @ 18477

#include "config.h"
#include "f2c.h"
#include "fio.h"

 static FILE *
#ifdef KR_headers
unit_chk(Unit, who) integer Unit; char *who;
#else
unit_chk(integer Unit, char *who)
#endif
{
        if (Unit >= MXUNIT || Unit < 0)
                f__fatal(101, who);
        return f__units[Unit].ufd;
        }

 integer
#ifdef KR_headers
G77_ftell_0 (Unit) integer *Unit;
#else
G77_ftell_0 (integer *Unit)
#endif
{
        FILE *f;
        return (f = unit_chk(*Unit, "ftell")) ? (integer) FTELL(f) : -1L;
        }

 integer
#ifdef KR_headers
G77_fseek_0 (Unit, offset, xwhence) integer *Unit, *offset, *xwhence;
#else
G77_fseek_0 (integer *Unit, integer *offset, integer *xwhence)
#endif
{
        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;
        }