fdwalk should return 0 on an empty directory
[kopensolaris-gnu/glibc.git] / iconvdata / 8bit-generic.c
1 /* Generic conversion to and from 8bit charsets.
2    Copyright (C) 1997-1999, 2000-2002 Free Software Foundation, Inc.
3    This file is part of the GNU C Library.
4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
5
6    The GNU C Library is free software; you can redistribute it and/or
7    modify it under the terms of the GNU Lesser General Public
8    License as published by the Free Software Foundation; either
9    version 2.1 of the License, or (at your option) any later version.
10
11    The GNU C Library 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    Lesser General Public License for more details.
15
16    You should have received a copy of the GNU Lesser General Public
17    License along with the GNU C Library; if not, write to the Free
18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19    02111-1307 USA.  */
20
21 #include <dlfcn.h>
22
23 #define FROM_LOOP               from_generic
24 #define TO_LOOP                 to_generic
25 #define DEFINE_INIT             1
26 #define DEFINE_FINI             1
27 #define MIN_NEEDED_FROM         1
28 #define MIN_NEEDED_TO           4
29
30
31 /* First define the conversion function from the 8bit charset to UCS4.  */
32 #define MIN_NEEDED_INPUT        MIN_NEEDED_FROM
33 #define MIN_NEEDED_OUTPUT       MIN_NEEDED_TO
34 #define LOOPFCT                 FROM_LOOP
35 #define BODY \
36   {                                                                           \
37     uint32_t ch = to_ucs4[*inptr];                                            \
38                                                                               \
39     if (HAS_HOLES && __builtin_expect (ch == L'\0', 0) && *inptr != '\0')     \
40       {                                                                       \
41         /* This is an illegal character.  */                                  \
42         STANDARD_FROM_LOOP_ERR_HANDLER (1);                                   \
43       }                                                                       \
44                                                                               \
45     put32 (outptr, ch);                                                       \
46     outptr += 4;                                                              \
47     ++inptr;                                                                  \
48   }
49 #define LOOP_NEED_FLAGS
50 #define ONEBYTE_BODY \
51   {                                                                           \
52     uint32_t ch = to_ucs4[c];                                                 \
53                                                                               \
54     if (HAS_HOLES && __builtin_expect (ch == L'\0', 0) && c != '\0')          \
55       return WEOF;                                                            \
56     else                                                                      \
57       return ch;                                                              \
58   }
59 #include <iconv/loop.c>
60
61
62 /* Next, define the other direction.  */
63 #define MIN_NEEDED_INPUT        MIN_NEEDED_TO
64 #define MIN_NEEDED_OUTPUT       MIN_NEEDED_FROM
65 #define LOOPFCT                 TO_LOOP
66 #define BODY \
67   {                                                                           \
68     uint32_t ch = get32 (inptr);                                              \
69                                                                               \
70     if (__builtin_expect (ch >= sizeof (from_ucs4) / sizeof (from_ucs4[0]), 0)\
71         || (__builtin_expect (from_ucs4[ch], '\1') == '\0' && ch != 0))       \
72       {                                                                       \
73         UNICODE_TAG_HANDLER (ch, 4);                                          \
74                                                                               \
75         /* This is an illegal character.  */                                  \
76         STANDARD_TO_LOOP_ERR_HANDLER (4);                                     \
77       }                                                                       \
78                                                                               \
79     *outptr++ = from_ucs4[ch];                                                \
80     inptr += 4;                                                               \
81   }
82 #define LOOP_NEED_FLAGS
83 #include <iconv/loop.c>
84
85
86 /* Now define the toplevel functions.  */
87 #include <iconv/skeleton.c>