OpenCores
URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [stdio/] [siscanf.c] - Blame information for rev 258

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 207 jeremybenn
/*
2
 * Copyright (c) 1990 The Regents of the University of California.
3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms are permitted
6
 * provided that the above copyright notice and this paragraph are
7
 * duplicated in all such forms and that any documentation,
8
 * advertising materials, and other materials related to such
9
 * distribution and use acknowledge that the software was developed
10
 * by the University of California, Berkeley.  The name of the
11
 * University may not be used to endorse or promote products derived
12
 * from this software without specific prior written permission.
13
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16
 */
17
 
18
/*
19
FUNCTION
20
<<siscanf>>, <<fiscanf>>, <<iscanf>>---scan and format non-floating input
21
 
22
INDEX
23
        iscanf
24
INDEX
25
        _iscanf_r
26
INDEX
27
        fiscanf
28
INDEX
29
        _fiscanf_r
30
INDEX
31
        siscanf
32
INDEX
33
        _siscanf_r
34
 
35
ANSI_SYNOPSIS
36
        #include <stdio.h>
37
 
38
        int iscanf(const char *<[format]>, ...);
39
        int fiscanf(FILE *<[fd]>, const char *<[format]>, ...);
40
        int siscanf(const char *<[str]>, const char *<[format]>, ...);
41
 
42
        int _iscanf_r(struct _reent *<[ptr]>, const char *<[format]>, ...);
43
        int _fiscanf_r(struct _reent *<[ptr]>, FILE *<[fd]>,
44
                       const char *<[format]>, ...);
45
        int _siscanf_r(struct _reent *<[ptr]>, const char *<[str]>,
46
                   const char *<[format]>, ...);
47
 
48
 
49
TRAD_SYNOPSIS
50
        #include <stdio.h>
51
 
52
        int iscanf(<[format]> [, <[arg]>, ...])
53
        char *<[format]>;
54
 
55
        int fiscanf(<[fd]>, <[format]> [, <[arg]>, ...]);
56
        FILE *<[fd]>;
57
        char *<[format]>;
58
 
59
        int siscanf(<[str]>, <[format]> [, <[arg]>, ...]);
60
        char *<[str]>;
61
        char *<[format]>;
62
 
63
        int _iscanf_r(<[ptr]>, <[format]> [, <[arg]>, ...])
64
        struct _reent *<[ptr]>;
65
        char *<[format]>;
66
 
67
        int _fiscanf_r(<[ptr]>, <[fd]>, <[format]> [, <[arg]>, ...]);
68
        struct _reent *<[ptr]>;
69
        FILE *<[fd]>;
70
        char *<[format]>;
71
 
72
        int _siscanf_r(<[ptr]>, <[str]>, <[format]> [, <[arg]>, ...]);
73
        struct _reent *<[ptr]>;
74
        char *<[str]>;
75
        char *<[format]>;
76
 
77
 
78
DESCRIPTION
79
        <<iscanf>>, <<fiscanf>>, and <<siscanf>> are the same as
80
        <<scanf>>, <<fscanf>>, and <<sscanf>> respectively, only that
81
        they restrict the available formats to non-floating-point
82
        format specifiers.
83
 
84
        The routines <<_iscanf_r>>, <<_fiscanf_r>>, and <<_siscanf_r>> are reentrant
85
        versions of <<iscanf>>, <<fiscanf>>, and <<siscanf>> that take an additional
86
        first argument pointing to a reentrancy structure.
87
 
88
RETURNS
89
        <<iscanf>> returns the number of input fields successfully
90
        scanned, converted and stored; the return value does
91
        not include scanned fields which were not stored.
92
 
93
        If <<iscanf>> attempts to read at end-of-file, the return
94
        value is <<EOF>>.
95
 
96
        If no fields were stored, the return value is <<0>>.
97
 
98
PORTABILITY
99
<<iscanf>>, <<fiscanf>>, and <<siscanf>> are newlib extensions.
100
 
101
Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
102
<<lseek>>, <<read>>, <<sbrk>>, <<write>>.
103
*/
104
 
105
#include <_ansi.h>
106
#include <reent.h>
107
#include <stdio.h>
108
#include <string.h>
109
#ifdef _HAVE_STDC
110
#include <stdarg.h>
111
#else
112
#include <varargs.h>
113
#endif
114
#include "local.h"
115
 
116
#ifndef _REENT_ONLY 
117
 
118
#ifdef _HAVE_STDC
119
int
120
_DEFUN(siscanf, (str, fmt),
121
       _CONST char *str _AND
122
       _CONST char *fmt _DOTS)
123
#else
124
int
125
siscanf(str, fmt, va_alist)
126
       _CONST char *str;
127
       _CONST char *fmt;
128
       va_dcl
129
#endif
130
{
131
  int ret;
132
  va_list ap;
133
  FILE f;
134
 
135
  f._flags = __SRD | __SSTR;
136
  f._bf._base = f._p = (unsigned char *) str;
137
  f._bf._size = f._r = strlen (str);
138
  f._read = __seofread;
139
  f._ub._base = NULL;
140
  f._lb._base = NULL;
141
  f._file = -1;  /* No file. */
142
#ifdef _HAVE_STDC
143
  va_start (ap, fmt);
144
#else
145
  va_start (ap);
146
#endif
147
  ret = __ssvfiscanf_r (_REENT, &f, fmt, ap);
148
  va_end (ap);
149
  return ret;
150
}
151
 
152
#endif /* !_REENT_ONLY */
153
 
154
#ifdef _HAVE_STDC
155
int
156
_DEFUN(_siscanf_r, (ptr, str, fmt),
157
       struct _reent *ptr _AND
158
       _CONST char *str   _AND
159
       _CONST char *fmt _DOTS)
160
#else
161
int
162
_siscanf_r(ptr, str, fmt, va_alist)
163
          struct _reent *ptr;
164
          _CONST char *str;
165
          _CONST char *fmt;
166
          va_dcl
167
#endif
168
{
169
  int ret;
170
  va_list ap;
171
  FILE f;
172
 
173
  f._flags = __SRD | __SSTR;
174
  f._bf._base = f._p = (unsigned char *) str;
175
  f._bf._size = f._r = strlen (str);
176
  f._read = __seofread;
177
  f._ub._base = NULL;
178
  f._lb._base = NULL;
179
  f._file = -1;  /* No file. */
180
#ifdef _HAVE_STDC
181
  va_start (ap, fmt);
182
#else
183
  va_start (ap);
184
#endif
185
  ret = __ssvfiscanf_r (ptr, &f, fmt, ap);
186
  va_end (ap);
187
  return ret;
188
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.