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Side by Side Diff: bison/src/bison/2.4.1/bison-2.4.1-src/lib/streq.h

Issue 10807020: Add native Windows binary for bison. (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/
Patch Set: Created 8 years, 5 months ago
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1 /* -*- buffer-read-only: t -*- vi: set ro: */
2 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */
3 /* Optimized string comparison.
4 Copyright (C) 2001-2002, 2007 Free Software Foundation, Inc.
5
6 This program is free software: you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published
8 by the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program 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 General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
18
19 /* Written by Bruno Haible <bruno@clisp.org>. */
20
21 #ifndef _GL_STREQ_H
22 #define _GL_STREQ_H
23
24 #include <string.h>
25
26 /* STREQ allows to optimize string comparison with a small literal string.
27 STREQ (s, "EUC-KR", 'E', 'U', 'C', '-', 'K', 'R', 0, 0, 0)
28 is semantically equivalent to
29 strcmp (s, "EUC-KR") == 0
30 just faster. */
31
32 /* Help GCC to generate good code for string comparisons with
33 immediate strings. */
34 #if defined (__GNUC__) && defined (__OPTIMIZE__)
35
36 static inline int
37 streq9 (const char *s1, const char *s2)
38 {
39 return strcmp (s1 + 9, s2 + 9) == 0;
40 }
41
42 static inline int
43 streq8 (const char *s1, const char *s2, char s28)
44 {
45 if (s1[8] == s28)
46 {
47 if (s28 == 0)
48 return 1;
49 else
50 return streq9 (s1, s2);
51 }
52 else
53 return 0;
54 }
55
56 static inline int
57 streq7 (const char *s1, const char *s2, char s27, char s28)
58 {
59 if (s1[7] == s27)
60 {
61 if (s27 == 0)
62 return 1;
63 else
64 return streq8 (s1, s2, s28);
65 }
66 else
67 return 0;
68 }
69
70 static inline int
71 streq6 (const char *s1, const char *s2, char s26, char s27, char s28)
72 {
73 if (s1[6] == s26)
74 {
75 if (s26 == 0)
76 return 1;
77 else
78 return streq7 (s1, s2, s27, s28);
79 }
80 else
81 return 0;
82 }
83
84 static inline int
85 streq5 (const char *s1, const char *s2, char s25, char s26, char s27, char s28)
86 {
87 if (s1[5] == s25)
88 {
89 if (s25 == 0)
90 return 1;
91 else
92 return streq6 (s1, s2, s26, s27, s28);
93 }
94 else
95 return 0;
96 }
97
98 static inline int
99 streq4 (const char *s1, const char *s2, char s24, char s25, char s26, char s27, char s28)
100 {
101 if (s1[4] == s24)
102 {
103 if (s24 == 0)
104 return 1;
105 else
106 return streq5 (s1, s2, s25, s26, s27, s28);
107 }
108 else
109 return 0;
110 }
111
112 static inline int
113 streq3 (const char *s1, const char *s2, char s23, char s24, char s25, char s26, char s27, char s28)
114 {
115 if (s1[3] == s23)
116 {
117 if (s23 == 0)
118 return 1;
119 else
120 return streq4 (s1, s2, s24, s25, s26, s27, s28);
121 }
122 else
123 return 0;
124 }
125
126 static inline int
127 streq2 (const char *s1, const char *s2, char s22, char s23, char s24, char s25, char s26, char s27, char s28)
128 {
129 if (s1[2] == s22)
130 {
131 if (s22 == 0)
132 return 1;
133 else
134 return streq3 (s1, s2, s23, s24, s25, s26, s27, s28);
135 }
136 else
137 return 0;
138 }
139
140 static inline int
141 streq1 (const char *s1, const char *s2, char s21, char s22, char s23, char s24, char s25, char s26, char s27, char s28)
142 {
143 if (s1[1] == s21)
144 {
145 if (s21 == 0)
146 return 1;
147 else
148 return streq2 (s1, s2, s22, s23, s24, s25, s26, s27, s28);
149 }
150 else
151 return 0;
152 }
153
154 static inline int
155 streq0 (const char *s1, const char *s2, char s20, char s21, char s22, char s23, char s24, char s25, char s26, char s27, char s28)
156 {
157 if (s1[0] == s20)
158 {
159 if (s20 == 0)
160 return 1;
161 else
162 return streq1 (s1, s2, s21, s22, s23, s24, s25, s26, s27, s28);
163 }
164 else
165 return 0;
166 }
167
168 #define STREQ(s1,s2,s20,s21,s22,s23,s24,s25,s26,s27,s28) \
169 streq0 (s1, s2, s20, s21, s22, s23, s24, s25, s26, s27, s28)
170
171 #else
172
173 #define STREQ(s1,s2,s20,s21,s22,s23,s24,s25,s26,s27,s28) \
174 (strcmp (s1, s2) == 0)
175
176 #endif
177
178 #endif /* _GL_STREQ_H */
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