1 /***********************************************************************
2 * *
3 * This software is part of the ast package *
4 * Copyright (c) 1985-2011 AT&T Intellectual Property *
5 * and is licensed under the *
6 * Eclipse Public License, Version 1.0 *
7 * by AT&T Intellectual Property *
8 * *
9 * A copy of the License is available at *
10 * http://www.eclipse.org/org/documents/epl-v10.html *
11 * (with md5 checksum b35adb5213ca9657e911e9befb180842) *
12 * *
13 * Information and Software Systems Research *
14 * AT&T Research *
15 * Florham Park NJ *
16 * *
17 * Glenn Fowler <gsf@research.att.com> *
18 * David Korn <dgk@research.att.com> *
19 * Phong Vo <kpv@research.att.com> *
20 * *
21 ***********************************************************************/
22 #pragma prototyped
23 /*
24 * Glenn Fowler
25 * AT&T Bell Laboratories
26 *
27 * return base b representation for n
28 * if p!=0 then base prefix is included
29 * otherwise if n==0 or b==0 then output is signed base 10
30 */
31
32 #include <ast.h>
33
34 char*
fmtbase(intmax_t n,int b,int p)35 fmtbase(intmax_t n, int b, int p)
36 {
37 char* buf;
38 int z;
39
40 if (!p)
41 {
42 if (!n)
43 return "0";
44 if (!b)
45 return fmtint(n, 0);
46 if (b == 10)
47 return fmtint(n, 1);
48 }
49 buf = fmtbuf(z = 72);
50 sfsprintf(buf, z, p ? "%#..*I*u" : "%..*I*u", b, sizeof(n), n);
51 return buf;
52 }
53
54 #if __OBSOLETE__ < 20140101
55
56 #undef fmtbasell
57
58 #if defined(__EXPORT__)
59 #define extern __EXPORT__
60 #endif
61
62 extern char*
fmtbasell(intmax_t n,int b,int p)63 fmtbasell(intmax_t n, int b, int p)
64 {
65 return fmtbase(n, b, p);
66 }
67
68 #undef extern
69
70 #endif
71