1 /* Class autosprintf - formatted output to an ostream.
2 Copyright (C) 2002 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify it
5 under the terms of the GNU Library General Public License as published
6 by the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
19 #ifndef _AUTOSPRINTF_H
20 #define _AUTOSPRINTF_H
22 #ifdef BUILDING_LIBASPRINTF
23 #define LIBASPRINTF_DLL_EXPORTED __declspec(dllexport)
25 #define LIBASPRINTF_DLL_EXPORTED __declspec(dllimport)
29 /* This feature is available in gcc versions 2.5 and later. */
30 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
31 # define __attribute__(Spec) /* empty */
33 /* The __-protected variants of `format' and `printf' attributes
34 are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
35 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
36 # define __format__ format
37 # define __printf__ printf
46 /* A temporary object, usually allocated on the stack, representing
47 the result of an asprintf() call. */
48 class LIBASPRINTF_DLL_EXPORTED autosprintf
51 /* Constructor: takes a format string and the printf arguments. */
52 autosprintf (const char *format, ...)
53 __attribute__ ((__format__ (__printf__, 2, 3)));
54 /* Copy constructor. */
55 autosprintf (const autosprintf& src);
56 /* Destructor: frees the temporarily allocated string. */
58 /* Conversion to string. */
59 operator char * () const;
60 operator std::string () const;
61 /* Output to an ostream. */
62 friend inline std::ostream& operator<< (std::ostream& stream, const autosprintf& tmp)
64 stream << (tmp.str ? tmp.str : "(error in autosprintf)");
72 #endif /* _AUTOSPRINTF_H */