Mercurial > hg > CbC > CbC_gcc
annotate libiberty/vasprintf.c @ 158:494b0b89df80 default tip
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| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 25 May 2020 18:13:55 +0900 |
| parents | 1830386684a0 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* Like vsprintf but provides a pointer to malloc'd storage, which must |
| 2 be freed by the caller. | |
| 145 | 3 Copyright (C) 1994-2020 Free Software Foundation, Inc. |
| 0 | 4 |
| 5 This file is part of the libiberty library. | |
| 6 Libiberty is free software; you can redistribute it and/or | |
| 7 modify it under the terms of the GNU Library General Public | |
| 8 License as published by the Free Software Foundation; either | |
| 9 version 2 of the License, or (at your option) any later version. | |
| 10 | |
| 11 Libiberty is distributed in the hope that it will be useful, | |
| 12 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 Library General Public License for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU Library General Public | |
| 111 | 17 License along with libiberty; see the file COPYING.LIB. If not, write |
| 18 to the Free Software Foundation, Inc., 51 Franklin Street - Fifth | |
| 19 Floor, Boston, MA 02110-1301, USA. */ | |
| 0 | 20 |
| 21 #ifdef HAVE_CONFIG_H | |
| 22 #include "config.h" | |
| 23 #endif | |
| 24 #include <ansidecl.h> | |
| 25 #include <stdarg.h> | |
| 26 #if !defined (va_copy) && defined (__va_copy) | |
| 27 # define va_copy(d,s) __va_copy((d),(s)) | |
| 28 #endif | |
| 29 #include <stdio.h> | |
| 30 #ifdef HAVE_STRING_H | |
| 31 #include <string.h> | |
| 32 #endif | |
| 33 #ifdef HAVE_STDLIB_H | |
| 34 #include <stdlib.h> | |
| 35 #else | |
| 36 extern PTR malloc (); | |
| 37 #endif | |
| 38 #include "libiberty.h" | |
| 111 | 39 #include "vprintf-support.h" |
| 0 | 40 |
| 41 #ifdef TEST | |
| 42 int global_total_width; | |
| 43 #endif | |
| 44 | |
| 45 /* | |
| 46 | |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
47 @deftypefn Extension int vasprintf (char **@var{resptr}, @ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
48 const char *@var{format}, va_list @var{args}) |
| 0 | 49 |
| 50 Like @code{vsprintf}, but instead of passing a pointer to a buffer, | |
| 51 you pass a pointer to a pointer. This function will compute the size | |
| 52 of the buffer needed, allocate memory with @code{malloc}, and store a | |
| 53 pointer to the allocated memory in @code{*@var{resptr}}. The value | |
| 54 returned is the same as @code{vsprintf} would return. If memory could | |
| 55 not be allocated, minus one is returned and @code{NULL} is stored in | |
| 56 @code{*@var{resptr}}. | |
| 57 | |
| 58 @end deftypefn | |
| 59 | |
| 60 */ | |
| 61 | |
| 62 static int int_vasprintf (char **, const char *, va_list); | |
| 63 | |
| 64 static int | |
| 65 int_vasprintf (char **result, const char *format, va_list args) | |
| 66 { | |
| 111 | 67 int total_width = libiberty_vprintf_buffer_size (format, args); |
| 0 | 68 #ifdef TEST |
| 69 global_total_width = total_width; | |
| 70 #endif | |
| 71 *result = (char *) malloc (total_width); | |
| 72 if (*result != NULL) | |
| 73 return vsprintf (*result, format, args); | |
| 74 else | |
| 75 return -1; | |
| 76 } | |
| 77 | |
| 78 int | |
| 79 vasprintf (char **result, const char *format, | |
| 80 #if defined (_BSD_VA_LIST_) && defined (__FreeBSD__) | |
| 81 _BSD_VA_LIST_ args) | |
| 82 #else | |
| 83 va_list args) | |
| 84 #endif | |
| 85 { | |
| 86 return int_vasprintf (result, format, args); | |
| 87 } | |
| 88 | |
| 89 #ifdef TEST | |
| 90 static void ATTRIBUTE_PRINTF_1 | |
| 91 checkit (const char *format, ...) | |
| 92 { | |
| 93 char *result; | |
| 111 | 94 va_list args; |
| 95 va_start (args, format); | |
| 0 | 96 vasprintf (&result, format, args); |
| 111 | 97 va_end (args); |
| 0 | 98 |
| 99 if (strlen (result) < (size_t) global_total_width) | |
| 100 printf ("PASS: "); | |
| 101 else | |
| 102 printf ("FAIL: "); | |
| 103 printf ("%d %s\n", global_total_width, result); | |
| 104 | |
| 105 free (result); | |
| 106 } | |
| 107 | |
| 108 extern int main (void); | |
| 109 | |
| 110 int | |
| 111 main (void) | |
| 112 { | |
| 113 checkit ("%d", 0x12345678); | |
| 114 checkit ("%200d", 5); | |
| 115 checkit ("%.300d", 6); | |
| 116 checkit ("%100.150d", 7); | |
| 117 checkit ("%s", "jjjjjjjjjiiiiiiiiiiiiiiioooooooooooooooooppppppppppppaa\n\ | |
| 118 777777777777777777333333333333366666666666622222222222777777777777733333"); | |
| 119 checkit ("%f%s%d%s", 1.0, "foo", 77, "asdjffffffffffffffiiiiiiiiiiixxxxx"); | |
| 120 | |
| 121 return 0; | |
| 122 } | |
| 123 #endif /* TEST */ |