rewind.c File Reference

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

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Functions
integer	f_rew (alist *a)

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Function Documentation

integer f_rew

(

alist *

a

)

Definition at line 9 of file rewind.c.

References a, b, err, f__units, MXUNIT, NULL, t_runc(), and void().

{
        unit *b;
        if(a->aunit>=MXUNIT || a->aunit<0)
                err(a->aerr,101,"rewind");
        b = &f__units[a->aunit];
        if(b->ufd == NULL || b->uwrt == 3)
                return(0);
        if(!b->useek)
                err(a->aerr,106,"rewind")
        if(b->uwrt) {
                (void) t_runc(a);
                b->uwrt = 3;
                }
        rewind(b->ufd);
        b->uend=0;
        return(0);
}

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