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comparison CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/autosprintf.h @ 69:33d812a61356

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planemo upload commit 2e9511a184a1ca667c7be0c6321a36dc4e3d116d
author jpayne
date Tue, 18 Mar 2025 17:55:14 -0400
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67:0e9998148a16 69:33d812a61356
1 /* Class autosprintf - formatted output to an ostream.
2 Copyright (C) 2002, 2012-2016 Free Software Foundation, Inc.
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2.1 of the License, or
7 (at your option) any later version.
8
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
12 GNU Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16
17 #ifndef _AUTOSPRINTF_H
18 #define _AUTOSPRINTF_H
19
20 /* This feature is available in gcc versions 2.5 and later. */
21 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
22 # define _AUTOSPRINTF_ATTRIBUTE_FORMAT() /* empty */
23 #else
24 /* The __-protected variants of 'format' and 'printf' attributes
25 are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
26 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
27 # define _AUTOSPRINTF_ATTRIBUTE_FORMAT() \
28 __attribute__ ((__format__ (__printf__, 2, 3)))
29 # else
30 # define _AUTOSPRINTF_ATTRIBUTE_FORMAT() \
31 __attribute__ ((format (printf, 2, 3)))
32 # endif
33 #endif
34
35 #include <string>
36 #include <iostream>
37
38 namespace gnu
39 {
40 /* A temporary object, usually allocated on the stack, representing
41 the result of an asprintf() call. */
42 class autosprintf
43 {
44 public:
45 /* Constructor: takes a format string and the printf arguments. */
46 autosprintf (const char *format, ...)
47 _AUTOSPRINTF_ATTRIBUTE_FORMAT();
48 /* Copy constructor. */
49 autosprintf (const autosprintf& src);
50 /* Assignment operator. */
51 autosprintf& operator = (autosprintf temporary);
52 /* Destructor: frees the temporarily allocated string. */
53 ~autosprintf ();
54 /* Conversion to string. */
55 operator char * () const;
56 operator std::string () const;
57 /* Output to an ostream. */
58 friend inline std::ostream& operator<< (std::ostream& stream, const autosprintf& tmp)
59 {
60 stream << (tmp.str ? tmp.str : "(error in autosprintf)");
61 return stream;
62 }
63 private:
64 char *str;
65 };
66 }
67
68 #endif /* _AUTOSPRINTF_H */