1 /*
2 Copyright (C) 1990 Free Software Foundation
3 written by Doug Lea (dl@rocky.oswego.edu)
4
5 This file is part of GNU CC.
6
7 GNU CC is distributed in the hope that it will be useful,
8 but WITHOUT ANY WARRANTY. No author or distributor
9 accepts responsibility to anyone for the consequences of using it
10 or for whether it serves any particular purpose or works at all,
11 unless he says so in writing. Refer to the GNU CC General Public
12 License for full details.
13
14 Everyone is granted permission to copy, modify and redistribute
15 GNU CC, but only under the conditions described in the
16 GNU CC General Public License. A copy of this license is
17 supposed to have been given to you along with GNU CC so you
18 can know your rights and responsibilities. It should be in a
19 file named COPYING. Among other things, the copyright notice
20 and this notice must be preserved on all copies.
21 */
22
23 #ifdef __GNUG__
24 #pragma implementation
25 #endif
26 #include <builtin.h>
27 #include <stdio.h>
28 #include <stdarg.h>
29 #include <AllocRing.h>
30
31 extern AllocRing _libgxx_fmtq;
32
form(const char * fmt...)33 char* form(const char* fmt ...)
34 {
35 va_list args;
36 va_start(args, fmt);
37 char* fmtbase = (char *) _libgxx_fmtq.alloc(BUFSIZ);
38 #ifndef HAVE_VPRINTF
39 FILE b;
40 #ifdef VMS
41 b->_flag = _IOWRT|_IOSTRG;
42 b->_ptr = fmtbase;
43 b->_cnt = BUFSIZ-1;
44 #else
45 b._flag = _IOWRT|_IOSTRG;
46 b._ptr = fmtbase;
47 b._cnt = BUFSIZ-1;
48 #endif
49 _doprnt(fmt, args, &b);
50 putc('\0', &b);
51 #else
52 vsprintf(fmtbase, fmt, args);
53 #endif
54 va_end(args);
55 return fmtbase;
56 }
57