xref: /onnv-gate/usr/src/lib/libast/common/string/fmtbase.c (revision 12068:08a39a083754)
14887Schin /***********************************************************************
24887Schin *                                                                      *
34887Schin *               This software is part of the ast package               *
4*12068SRoger.Faulkner@Oracle.COM *          Copyright (c) 1985-2010 AT&T Intellectual Property          *
54887Schin *                      and is licensed under the                       *
64887Schin *                  Common Public License, Version 1.0                  *
78462SApril.Chin@Sun.COM *                    by AT&T Intellectual Property                     *
84887Schin *                                                                      *
94887Schin *                A copy of the License is available at                 *
104887Schin *            http://www.opensource.org/licenses/cpl1.0.txt             *
114887Schin *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
124887Schin *                                                                      *
134887Schin *              Information and Software Systems Research               *
144887Schin *                            AT&T Research                             *
154887Schin *                           Florham Park NJ                            *
164887Schin *                                                                      *
174887Schin *                 Glenn Fowler <gsf@research.att.com>                  *
184887Schin *                  David Korn <dgk@research.att.com>                   *
194887Schin *                   Phong Vo <kpv@research.att.com>                    *
204887Schin *                                                                      *
214887Schin ***********************************************************************/
224887Schin #pragma prototyped
234887Schin /*
244887Schin  * Glenn Fowler
254887Schin  * AT&T Bell Laboratories
264887Schin  *
274887Schin  * return base b representation for n
284887Schin  * if p!=0 then base prefix is included
294887Schin  * otherwise if n==0 or b==0 then output is signed base 10
304887Schin  */
314887Schin 
324887Schin #include <ast.h>
334887Schin 
344887Schin #undef	fmtbasell
354887Schin 
364887Schin char*
fmtbasell(register intmax_t n,register int b,int p)374887Schin fmtbasell(register intmax_t n, register int b, int p)
384887Schin {
394887Schin 	char*	buf;
404887Schin 	int	z;
414887Schin 
424887Schin 	buf = fmtbuf(z = 72);
434887Schin 	if (!p && (n == 0 || b == 0))
444887Schin 		sfsprintf(buf, z, "%I*d", sizeof(n), n);
454887Schin 	else
464887Schin 		sfsprintf(buf, z, p ? "%#..*I*u" : "%..*I*u", b, sizeof(n), n);
474887Schin 	return buf;
484887Schin }
494887Schin 
504887Schin #undef	fmtbase
514887Schin 
524887Schin char*
fmtbase(long n,int b,int p)534887Schin fmtbase(long n, int b, int p)
544887Schin {
554887Schin 	return fmtbasell((intmax_t)n, b, p);
564887Schin }
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