1 /* -*- buffer-read-only: t -*- vi: set ro: */
2 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */
3 /* Optimized case-insensitive string comparison in C locale.
4 Copyright (C) 2001-2002, 2007, 2009-2013 Free Software Foundation, Inc.
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.
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 General Public License for more details.
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/>. */
19 /* Written by Bruno Haible <bruno@clisp.org>. */
21 #include "c-strcase.h"
24 /* STRCASEEQ allows to optimize string comparison with a small literal string.
25 STRCASEEQ (s, "UTF-8", 'U','T','F','-','8',0,0,0,0)
26 is semantically equivalent to
27 c_strcasecmp (s, "UTF-8") == 0
30 /* Help GCC to generate good code for string comparisons with
32 #if defined (__GNUC__) && defined (__OPTIMIZE__)
34 /* Case insensitive comparison of ASCII characters. */
36 # define CASEEQ(other,upper) \
37 (c_isupper (upper) ? ((other) & ~0x20) == (upper) : (other) == (upper))
38 # elif C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE
39 # define CASEEQ(other,upper) \
40 (c_isupper (upper) ? (other) == (upper) || (other) == (upper) - 'A' + 'a' : (other) == (upper))
42 # define CASEEQ(other,upper) \
43 (c_toupper (other) == (upper))
47 strcaseeq9 (const char *s1, const char *s2)
49 return c_strcasecmp (s1 + 9, s2 + 9) == 0;
53 strcaseeq8 (const char *s1, const char *s2, char s28)
55 if (CASEEQ (s1[8], s28))
60 return strcaseeq9 (s1, s2);
67 strcaseeq7 (const char *s1, const char *s2, char s27, char s28)
69 if (CASEEQ (s1[7], s27))
74 return strcaseeq8 (s1, s2, s28);
81 strcaseeq6 (const char *s1, const char *s2, char s26, char s27, char s28)
83 if (CASEEQ (s1[6], s26))
88 return strcaseeq7 (s1, s2, s27, s28);
95 strcaseeq5 (const char *s1, const char *s2, char s25, char s26, char s27, char s28)
97 if (CASEEQ (s1[5], s25))
102 return strcaseeq6 (s1, s2, s26, s27, s28);
109 strcaseeq4 (const char *s1, const char *s2, char s24, char s25, char s26, char s27, char s28)
111 if (CASEEQ (s1[4], s24))
116 return strcaseeq5 (s1, s2, s25, s26, s27, s28);
123 strcaseeq3 (const char *s1, const char *s2, char s23, char s24, char s25, char s26, char s27, char s28)
125 if (CASEEQ (s1[3], s23))
130 return strcaseeq4 (s1, s2, s24, s25, s26, s27, s28);
137 strcaseeq2 (const char *s1, const char *s2, char s22, char s23, char s24, char s25, char s26, char s27, char s28)
139 if (CASEEQ (s1[2], s22))
144 return strcaseeq3 (s1, s2, s23, s24, s25, s26, s27, s28);
151 strcaseeq1 (const char *s1, const char *s2, char s21, char s22, char s23, char s24, char s25, char s26, char s27, char s28)
153 if (CASEEQ (s1[1], s21))
158 return strcaseeq2 (s1, s2, s22, s23, s24, s25, s26, s27, s28);
165 strcaseeq0 (const char *s1, const char *s2, char s20, char s21, char s22, char s23, char s24, char s25, char s26, char s27, char s28)
167 if (CASEEQ (s1[0], s20))
172 return strcaseeq1 (s1, s2, s21, s22, s23, s24, s25, s26, s27, s28);
178 #define STRCASEEQ(s1,s2,s20,s21,s22,s23,s24,s25,s26,s27,s28) \
179 strcaseeq0 (s1, s2, s20, s21, s22, s23, s24, s25, s26, s27, s28)
183 #define STRCASEEQ(s1,s2,s20,s21,s22,s23,s24,s25,s26,s27,s28) \
184 (c_strcasecmp (s1, s2) == 0)