1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/* vasprintf and asprintf, in C locale.
Copyright (C) 2002-2004, 2006-2026 Free Software Foundation, Inc.
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This file is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _C_VASPRINTF_H
#define _C_VASPRINTF_H
/* This file uses _GL_ATTRIBUTE_FORMAT, _GL_ATTRIBUTE_NODISCARD. */
#if !_GL_CONFIG_H_INCLUDED
#error "Please include config.h first."
#endif
/* Get va_list. */
#include <stdarg.h>
/* Get ptrdiff_t. */
#include <stddef.h>
/* Get _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD. */
#include <stdio.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Prints formatted output to a string dynamically allocated with malloc().
If the memory allocation succeeds, it stores the address of the string in
*RESULT and returns the number of resulting bytes, excluding the trailing
NUL. Upon memory allocation error, or some other error, it returns -1
with errno set.
Failure code EOVERFLOW can only occur when a width > INT_MAX is used.
Therefore, if the format string is valid and does not use %ls/%lc
directives nor widths, the only possible failure code is ENOMEM.
Formatting takes place in the C locale, that is, the decimal point
used in floating-point formatting directives is always '.'. */
_GL_ATTRIBUTE_NODISCARD
ptrdiff_t c_aszprintf (char **resultp, const char *format, ...)
_GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 2, 3));
_GL_ATTRIBUTE_NODISCARD
ptrdiff_t c_vaszprintf (char **resultp, const char *format, va_list args)
_GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 2, 0));
/* Prints formatted output to a string dynamically allocated with malloc().
If the memory allocation succeeds, it stores the address of the string in
*RESULT and returns the number of resulting bytes, excluding the trailing
NUL. Upon memory allocation error, or some other error, it returns -1.
Formatting takes place in the C locale, that is, the decimal point
used in floating-point formatting directives is always '.'. */
_GL_ATTRIBUTE_NODISCARD
int c_asprintf (char **resultp, const char *format, ...)
_GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 2, 3));
_GL_ATTRIBUTE_NODISCARD
int c_vasprintf (char **resultp, const char *format, va_list args)
_GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 2, 0));
#ifdef __cplusplus
}
#endif
#endif /* _C_VASPRINTF_H */
|
