fmtbase.c revision 3e14f97f673e8a630f076077de35afdd43dc1587
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2010 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);
}