1 /* Test and measure strchr functions.
2 Copyright (C) 1999, 2002 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Written by Jakub Jelinek <jakub@redhat.com>, 1999.
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.
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.
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
22 #include "test-string.h"
24 typedef char *(*proto_t
) (const char *, int);
25 char *simple_strchr (const char *, int);
26 char *stupid_strchr (const char *, int);
28 IMPL (stupid_strchr
, 0)
29 IMPL (simple_strchr
, 0)
33 simple_strchr (const char *s
, int c
)
35 for (; *s
!= (char) c
; ++s
)
42 stupid_strchr (const char *s
, int c
)
44 size_t n
= strlen (s
) + 1;
48 return (char *) s
- 1;
53 do_one_test (impl_t
*impl
, const char *s
, int c
, char *exp_res
)
55 char *res
= CALL (impl
, s
, c
);
58 error (0, 0, "Wrong result in function %s %p %p", impl
->name
,
66 hp_timing_t start
, stop
, best_time
= ~ (hp_timing_t
) 0;
69 for (i
= 0; i
< 32; ++i
)
71 HP_TIMING_NOW (start
);
74 HP_TIMING_BEST (best_time
, start
, stop
);
77 printf ("\t%zd", (size_t) best_time
);
82 do_test (size_t align
, size_t pos
, size_t len
, int seek_char
, int max_char
)
88 if (align
+ len
>= page_size
)
91 for (i
= 0; i
< len
; ++i
)
93 buf1
[align
+ i
] = 32 + 23 * i
% (max_char
- 32);
94 if (buf1
[align
+ i
] == seek_char
)
95 buf1
[align
+ i
] = seek_char
+ 1;
97 buf1
[align
+ len
] = 0;
101 buf1
[align
+ pos
] = seek_char
;
102 result
= buf1
+ align
+ pos
;
104 else if (seek_char
== 0)
105 result
= buf1
+ align
+ len
;
110 printf ("Length %4zd, alignment %2zd:", pos
, align
);
112 FOR_EACH_IMPL (impl
, 0)
113 do_one_test (impl
, buf1
+ align
, seek_char
, result
);
120 do_random_tests (void)
122 size_t i
, j
, n
, align
, pos
, len
;
125 unsigned char *p
= buf1
+ page_size
- 512;
127 for (n
= 0; n
< ITERATIONS
; n
++)
129 align
= random () & 15;
130 pos
= random () & 511;
131 seek_char
= random () & 255;
132 if (pos
+ align
>= 511)
133 pos
= 510 - align
- (random () & 7);
134 len
= random () & 511;
135 if ((pos
== len
&& seek_char
)
136 || (pos
> len
&& (random () & 1)))
137 len
= pos
+ 1 + (random () & 7);
138 if (len
+ align
>= 512)
139 len
= 511 - align
- (random () & 7);
140 if (pos
== len
&& seek_char
)
142 j
= (pos
> len
? pos
: len
) + align
+ 64;
146 for (i
= 0; i
< j
; i
++)
148 if (i
== pos
+ align
)
150 else if (i
== len
+ align
)
154 p
[i
] = random () & 255;
155 if (i
< pos
+ align
&& p
[i
] == seek_char
)
156 p
[i
] = seek_char
+ 13;
157 if (i
< len
+ align
&& !p
[i
])
159 p
[i
] = seek_char
- 13;
167 result
= p
+ pos
+ align
;
168 else if (seek_char
== 0)
169 result
= p
+ len
+ align
;
173 FOR_EACH_IMPL (impl
, 1)
174 if (CALL (impl
, p
+ align
, seek_char
) != result
)
176 error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %d, %zd, %zd) %p != %p, p %p",
177 n
, impl
->name
, align
, seek_char
, len
, pos
,
178 CALL (impl
, p
+ align
, seek_char
), result
, p
);
192 FOR_EACH_IMPL (impl
, 0)
193 printf ("\t%s", impl
->name
);
196 for (i
= 1; i
< 8; ++i
)
198 do_test (0, 16 << i
, 2048, 23, 127);
199 do_test (i
, 16 << i
, 2048, 23, 127);
202 for (i
= 1; i
< 8; ++i
)
204 do_test (i
, 64, 256, 23, 127);
205 do_test (i
, 64, 256, 23, 255);
208 for (i
= 0; i
< 32; ++i
)
210 do_test (0, i
, i
+ 1, 23, 127);
211 do_test (0, i
, i
+ 1, 23, 255);
214 for (i
= 1; i
< 8; ++i
)
216 do_test (0, 16 << i
, 2048, 0, 127);
217 do_test (i
, 16 << i
, 2048, 0, 127);
220 for (i
= 1; i
< 8; ++i
)
222 do_test (i
, 64, 256, 0, 127);
223 do_test (i
, 64, 256, 0, 255);
226 for (i
= 0; i
< 32; ++i
)
228 do_test (0, i
, i
+ 1, 0, 127);
229 do_test (0, i
, i
+ 1, 0, 255);
236 #include "../test-skeleton.c"