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97020474 | 1 | /* Measure strspn functions. |
d4697bc9 | 2 | Copyright (C) 2013-2014 Free Software Foundation, Inc. |
97020474 SP |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #define TEST_MAIN | |
20 | #define TEST_NAME "strspn" | |
21 | #include "bench-string.h" | |
22 | ||
23 | typedef size_t (*proto_t) (const char *, const char *); | |
24 | size_t simple_strspn (const char *, const char *); | |
25 | size_t stupid_strspn (const char *, const char *); | |
26 | ||
27 | IMPL (stupid_strspn, 0) | |
28 | IMPL (simple_strspn, 0) | |
29 | IMPL (strspn, 1) | |
30 | ||
31 | size_t | |
32 | simple_strspn (const char *s, const char *acc) | |
33 | { | |
34 | const char *r, *str = s; | |
35 | char c; | |
36 | ||
37 | while ((c = *s++) != '\0') | |
38 | { | |
39 | for (r = acc; *r != '\0'; ++r) | |
40 | if (*r == c) | |
41 | break; | |
42 | if (*r == '\0') | |
43 | return s - str - 1; | |
44 | } | |
45 | return s - str - 1; | |
46 | } | |
47 | ||
48 | size_t | |
49 | stupid_strspn (const char *s, const char *acc) | |
50 | { | |
51 | size_t ns = strlen (s), nacc = strlen (acc); | |
52 | size_t i, j; | |
53 | ||
54 | for (i = 0; i < ns; ++i) | |
55 | { | |
56 | for (j = 0; j < nacc; ++j) | |
57 | if (s[i] == acc[j]) | |
58 | break; | |
59 | if (j == nacc) | |
60 | return i; | |
61 | } | |
62 | return i; | |
63 | } | |
64 | ||
65 | static void | |
66 | do_one_test (impl_t *impl, const char *s, const char *acc, size_t exp_res) | |
67 | { | |
44558701 WN |
68 | size_t res = CALL (impl, s, acc), i, iters = INNER_LOOP_ITERS; |
69 | timing_t start, stop, cur; | |
70 | ||
97020474 SP |
71 | if (res != exp_res) |
72 | { | |
73 | error (0, 0, "Wrong result in function %s %p %p", impl->name, | |
74 | (void *) res, (void *) exp_res); | |
75 | ret = 1; | |
76 | return; | |
77 | } | |
78 | ||
44558701 WN |
79 | TIMING_NOW (start); |
80 | for (i = 0; i < iters; ++i) | |
97020474 | 81 | { |
44558701 | 82 | CALL (impl, s, acc); |
97020474 | 83 | } |
44558701 WN |
84 | TIMING_NOW (stop); |
85 | ||
86 | TIMING_DIFF (cur, start, stop); | |
87 | ||
88 | TIMING_PRINT_MEAN ((double) cur, (double) iters); | |
97020474 SP |
89 | } |
90 | ||
91 | static void | |
92 | do_test (size_t align, size_t pos, size_t len) | |
93 | { | |
94 | size_t i; | |
95 | char *acc, *s; | |
96 | ||
97 | align &= 7; | |
98 | if (align + pos + 10 >= page_size || len > 240 || ! len) | |
99 | return; | |
100 | ||
101 | acc = (char *) (buf2 + (random () & 255)); | |
102 | s = (char *) (buf1 + align); | |
103 | ||
104 | for (i = 0; i < len; ++i) | |
105 | { | |
106 | acc[i] = random () & 255; | |
107 | if (!acc[i]) | |
108 | acc[i] = random () & 255; | |
109 | if (!acc[i]) | |
110 | acc[i] = 1 + (random () & 127); | |
111 | } | |
112 | acc[len] = '\0'; | |
113 | ||
114 | for (i = 0; i < pos; ++i) | |
115 | s[i] = acc[random () % len]; | |
116 | s[pos] = random () & 255; | |
117 | if (strchr (acc, s[pos])) | |
118 | s[pos] = '\0'; | |
119 | else | |
120 | { | |
121 | for (i = pos + 1; i < pos + 10; ++i) | |
122 | s[i] = random () & 255; | |
123 | s[i] = '\0'; | |
124 | } | |
125 | ||
44558701 | 126 | printf ("Length %4zd, alignment %2zd, acc len %2zd:", pos, align, len); |
97020474 SP |
127 | |
128 | FOR_EACH_IMPL (impl, 0) | |
129 | do_one_test (impl, s, acc, pos); | |
130 | ||
44558701 | 131 | putchar ('\n'); |
97020474 SP |
132 | } |
133 | ||
134 | int | |
135 | test_main (void) | |
136 | { | |
137 | size_t i; | |
138 | ||
139 | test_init (); | |
140 | ||
141 | printf ("%32s", ""); | |
142 | FOR_EACH_IMPL (impl, 0) | |
143 | printf ("\t%s", impl->name); | |
144 | putchar ('\n'); | |
145 | ||
146 | for (i = 0; i < 32; ++i) | |
147 | { | |
148 | do_test (0, 512, i); | |
149 | do_test (i, 512, i); | |
150 | } | |
151 | ||
152 | for (i = 1; i < 8; ++i) | |
153 | { | |
154 | do_test (0, 16 << i, 4); | |
155 | do_test (i, 16 << i, 4); | |
156 | } | |
157 | ||
158 | for (i = 1; i < 8; ++i) | |
159 | do_test (i, 64, 10); | |
160 | ||
161 | for (i = 0; i < 64; ++i) | |
162 | do_test (0, i, 6); | |
163 | ||
164 | return ret; | |
165 | } | |
166 | ||
167 | #include "../test-skeleton.c" |