Path: utzoo!mnetor!uunet!husc6!uwvax!oddjob!gargoyle!ihnp4!tness1!mechjgh
From: mechjgh@tness1.UUCP (Greg Hackney 214+464-2771)
Newsgroups: comp.sys.pyramid
Subject: Re: Wrapper function to sprintf
Message-ID: <432@tness1.UUCP>
Date: 6 Mar 88 01:01:38 GMT
References: <8803040308.AA02292@mimsy.umd.edu>
Reply-To: mechjgh@tness1.UUCP (Greg Hackney)
Organization: S.W. Bell, Network Engineering, Dallas, Texas
Lines: 99


 In article <8803040308.AA02292@mimsy.umd.edu> chris@MIMSY.UMD.EDU (Chris Torek) writes:
 >I am afraid I have to agree with Greg Hackney's own description of
 >his method:
 >
 >	I couldn't figure out how to pass an array of pointers to sprintf()
 >	and make it work correctly, but here's a dippy way that does work.

 Ouch Chris.

 >There *is* a way to implement the desired `dialog' function, however.
 >A careful scan of the manuals reveals the `vsprintf' function.
 >/* if you need it: */
 >#ifdef notdef
 >int
 >vsprintf(str, fmt, arg)
 >	char *str, *fmt;
 >	va_list arg;
 >{
 >	FILE f;
 >	int ret;
 >
 >	f._flag = _IOSTRG;	/* leave out _IOWRT to avoid libc bug */
 >	f._base = f._ptr = str;
 >	ret = _doprnt(fmt, arg, &f);
 >	*f._ptr = 0;
 >	return (ret);
 >}
 >#endif

 The code (vsprintf) does work in the SysV universe, but there were 2 lines
 that needed to be added to make it work in the Pyramid BSD environment...

 	#include <values.h>

 	f._cnt  = MAXINT;

 --
 Greg Hackney
 Southwestern Bell Telephone Co.
 Dallas, Texas
 mechjgh@tness1.UUCP
 {ihnp4,bellcore,killer}!tness1!mechjgh


 Newsgroups: comp.sys.pyramid
 Subject: Re: Wrapper function to sprintf
 Summary: 
 Expires: 
 References: <8803040308.AA02292@mimsy.umd.edu>
 Sender: 
 Reply-To: mechjgh@tness1.UUCP (Greg Hackney)
 Followup-To: 
 Distribution: 
 Organization: S.W. Bell, Network Engineering, Dallas, Texas
 Keywords: 

  In article <8803040308.AA02292@mimsy.umd.edu> chris@MIMSY.UMD.EDU (Chris Torek) writes:
  >I am afraid I have to agree with Greg Hackney's own description of
  >his method:
  >
  >	I couldn't figure out how to pass an array of pointers to sprintf()
  >	and make it work correctly, but here's a dippy way that does work.

  Ouch Chris.

  >There *is* a way to implement the desired `dialog' function, however.
  >A careful scan of the manuals reveals the `vsprintf' function.
  >/* if you need it: */
  >#ifdef notdef
  >int
  >vsprintf(str, fmt, arg)
  >	char *str, *fmt;
  >	va_list arg;
  >{
  >	FILE f;
  >	int ret;
  >
  >	f._flag = _IOSTRG;	/* leave out _IOWRT to avoid libc bug */
  >	f._base = f._ptr = str;
  >	ret = _doprnt(fmt, arg, &f);
  >	*f._ptr = 0;
  >	return (ret);
  >}
  >#endif

  The code (vsprintf) does work in the SysV universe, but there were 2 lines
  that needed to be added to make it work in the Pyramid BSD environment...

  	#include <values.h>

  	f._cnt  = MAXINT;

  --
  Greg Hackney
  Southwestern Bell Telephone Co.
  Dallas, Texas
  mechjgh@tness1.UUCP
  {ihnp4,bellcore,killer}!tness1!mechjgh