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fmtbase.c

/***********************************************************************
*                                                                      *
*               This software is part of the ast package               *
*          Copyright (c) 1985-2008 AT&T Intellectual Property          *
*                      and is licensed under the                       *
*                  Common Public License, Version 1.0                  *
*                    by AT&T Intellectual Property                     *
*                                                                      *
*                A copy of the License is available at                 *
*            http://www.opensource.org/licenses/cpl1.0.txt             *
*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
*                                                                      *
*              Information and Software Systems Research               *
*                            AT&T Research                             *
*                           Florham Park NJ                            *
*                                                                      *
*                 Glenn Fowler <gsf@research.att.com>                  *
*                  David Korn <dgk@research.att.com>                   *
*                   Phong Vo <kpv@research.att.com>                    *
*                                                                      *
***********************************************************************/
#pragma prototyped
/*
 * Glenn Fowler
 * AT&T Bell Laboratories
 *
 * return base b representation for n
 * if p!=0 then base prefix is included
 * otherwise if n==0 or b==0 then output is signed base 10
 */

#include <ast.h>

#undef      fmtbasell

char*
fmtbasell(register intmax_t n, register int b, int p)
{
      char* buf;
      int   z;

      buf = fmtbuf(z = 72);
      if (!p && (n == 0 || b == 0))
            sfsprintf(buf, z, "%I*d", sizeof(n), n);
      else
            sfsprintf(buf, z, p ? "%#..*I*u" : "%..*I*u", b, sizeof(n), n);
      return buf;
}

#undef      fmtbase

char*
fmtbase(long n, int b, int p)
{
      return fmtbasell((intmax_t)n, b, p);
}

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