Comment on slow compilation of math/test-tgmath2.c
[glibc.git] / iconvdata / 8bit-gap.c
blobd2e4efc2b7ee9c4a28cf8e9e25e5dcf975724fa6
1 /* Generic conversion to and from 8bit charsets,
2 converting from UCS using gaps.
3 Copyright (C) 1997-1999, 2000-2002 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library; if not, see
19 <http://www.gnu.org/licenses/>. */
21 #include <dlfcn.h>
22 #include <stdint.h>
24 struct gap
26 uint16_t start;
27 uint16_t end;
28 int32_t idx;
31 /* Now we can include the tables. */
32 #include TABLES
34 #ifndef NONNUL
35 # define NONNUL(c) ((c) != '\0')
36 #endif
39 #define FROM_LOOP from_gap
40 #define TO_LOOP to_gap
41 #define DEFINE_INIT 1
42 #define DEFINE_FINI 1
43 #define MIN_NEEDED_FROM 1
44 #define MIN_NEEDED_TO 4
47 /* First define the conversion function from the 8bit charset to UCS4. */
48 #define MIN_NEEDED_INPUT MIN_NEEDED_FROM
49 #define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
50 #define LOOPFCT FROM_LOOP
51 #define BODY \
52 { \
53 uint32_t ch = to_ucs4[*inptr]; \
55 if (HAS_HOLES && __builtin_expect (ch == L'\0', 0) && NONNUL (*inptr)) \
56 { \
57 /* This is an illegal character. */ \
58 STANDARD_FROM_LOOP_ERR_HANDLER (1); \
59 } \
60 else \
61 { \
62 put32 (outptr, ch); \
63 outptr += 4; \
64 } \
66 ++inptr; \
68 #define LOOP_NEED_FLAGS
69 #define ONEBYTE_BODY \
70 { \
71 uint32_t ch = to_ucs4[c]; \
73 if (HAS_HOLES && __builtin_expect (ch == L'\0', 0) && NONNUL (c)) \
74 return WEOF; \
75 else \
76 return ch; \
78 #include <iconv/loop.c>
81 /* Next, define the other direction. */
82 #define MIN_NEEDED_INPUT MIN_NEEDED_TO
83 #define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
84 #define LOOPFCT TO_LOOP
85 #define BODY \
86 { \
87 const struct gap *rp = from_idx; \
88 uint32_t ch = get32 (inptr); \
89 unsigned char res; \
91 if (__builtin_expect (ch >= 0xffff, 0)) \
92 { \
93 UNICODE_TAG_HANDLER (ch, 4); \
94 rp = NULL; \
95 } \
96 else \
97 while (ch > rp->end) \
98 ++rp; \
99 if (__builtin_expect (rp == NULL, 0) \
100 || __builtin_expect (ch < rp->start, 0) \
101 || (res = from_ucs4[ch + rp->idx], \
102 __builtin_expect (res, '\1') == '\0' && ch != 0)) \
104 /* This is an illegal character. */ \
105 STANDARD_TO_LOOP_ERR_HANDLER (4); \
108 *outptr++ = res; \
109 inptr += 4; \
111 #define LOOP_NEED_FLAGS
112 #include <iconv/loop.c>
115 /* Now define the toplevel functions. */
116 #include <iconv/skeleton.c>