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freebsd/lib/libI77/sue.c
Joerg Wunsch c3ad4b4583 Update to the most recent version. Among other things, this also solves
the function naming problem for complex double function i've recently
aksed for in -committers.  (The recently committed rev 1.5 of proc.c
was actually also part of this update.)

Should the mailing lists come to an agreement that f2c better belongs
into the ports, this could be done nevertheless.  For the time being,
we've at least got a current version now.

Thanks, Steve!

Submitted by:	Steve Kargl <sgk@troutmask.apl.washington.edu>
1999-02-03 17:23:49 +00:00

84 lines
1.8 KiB
C

#include "f2c.h"
#include "fio.h"
extern uiolen f__reclen;
long f__recloc;
#ifdef KR_headers
c_sue(a) cilist *a;
#else
c_sue(cilist *a)
#endif
{
f__external=f__sequential=1;
f__formatted=0;
f__curunit = &f__units[a->ciunit];
if(a->ciunit >= MXUNIT || a->ciunit < 0)
err(a->cierr,101,"startio");
f__elist=a;
if(f__curunit->ufd==NULL && fk_open(SEQ,UNF,a->ciunit))
err(a->cierr,114,"sue");
f__cf=f__curunit->ufd;
if(f__curunit->ufmt) err(a->cierr,103,"sue")
if(!f__curunit->useek) err(a->cierr,103,"sue")
return(0);
}
#ifdef KR_headers
integer s_rsue(a) cilist *a;
#else
integer s_rsue(cilist *a)
#endif
{
int n;
if(!f__init) f_init();
f__reading=1;
if(n=c_sue(a)) return(n);
f__recpos=0;
if(f__curunit->uwrt && f__nowreading(f__curunit))
err(a->cierr, errno, "read start");
if(fread((char *)&f__reclen,sizeof(uiolen),1,f__cf)
!= 1)
{ if(feof(f__cf))
{ f__curunit->uend = 1;
err(a->ciend, EOF, "start");
}
clearerr(f__cf);
err(a->cierr, errno, "start");
}
return(0);
}
#ifdef KR_headers
integer s_wsue(a) cilist *a;
#else
integer s_wsue(cilist *a)
#endif
{
int n;
if(!f__init) f_init();
if(n=c_sue(a)) return(n);
f__reading=0;
f__reclen=0;
if(f__curunit->uwrt != 1 && f__nowwriting(f__curunit))
err(a->cierr, errno, "write start");
f__recloc=ftell(f__cf);
(void) fseek(f__cf,(long)sizeof(uiolen),SEEK_CUR);
return(0);
}
integer e_wsue(Void)
{ long loc;
fwrite((char *)&f__reclen,sizeof(uiolen),1,f__cf);
#ifdef ALWAYS_FLUSH
if (fflush(f__cf))
err(f__elist->cierr, errno, "write end");
#endif
loc=ftell(f__cf);
fseek(f__cf,f__recloc,SEEK_SET);
fwrite((char *)&f__reclen,sizeof(uiolen),1,f__cf);
fseek(f__cf,loc,SEEK_SET);
return(0);
}
integer e_rsue(Void)
{
(void) fseek(f__cf,(long)(f__reclen-f__recpos+sizeof(uiolen)),SEEK_CUR);
return(0);
}