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sourceware.org Git - glibc.git/blob - string/test-strcpy.c
1 /* Test and measure strcpy functions.
2 Copyright (C) 1999, 2002, 2003, 2005, 2011, 2012 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Written by Jakub Jelinek <jakub@redhat.com>, 1999.
5 Added wcscpy support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011
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, write to the Free
19 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
25 # define UCHAR wchar_t
27 # define BIG_CHAR WCHAR_MAX
28 # define SMALL_CHAR 1273
29 # define STRCMP wcscmp
30 # define MEMCMP wmemcmp
31 # define MEMSET wmemset
34 # define UCHAR unsigned char
36 # define BIG_CHAR CHAR_MAX
37 # define SMALL_CHAR 127
38 # define STRCMP strcmp
39 # define MEMCMP memcmp
40 # define MEMSET memset
44 # define STRCPY_RESULT(dst, len) dst
46 # include "test-string.h"
48 # define SIMPLE_STRCPY simple_strcpy
49 # define STRCPY strcpy
51 # define SIMPLE_STRCPY simple_wcscpy
52 # define STRCPY wcscpy
55 CHAR
*SIMPLE_STRCPY (CHAR
*, const CHAR
*);
57 IMPL (SIMPLE_STRCPY
, 0)
61 SIMPLE_STRCPY (CHAR
*dst
, const CHAR
*src
)
64 while ((*dst
++ = *src
++) != '\0');
69 typedef CHAR
*(*proto_t
) (CHAR
*, const CHAR
*);
72 do_one_test (impl_t
*impl
, CHAR
*dst
, const CHAR
*src
,
73 size_t len
__attribute__((unused
)))
75 if (CALL (impl
, dst
, src
) != STRCPY_RESULT (dst
, len
))
77 error (0, 0, "Wrong result in function %s %p %p", impl
->name
,
78 CALL (impl
, dst
, src
), STRCPY_RESULT (dst
, len
));
83 if (STRCMP (dst
, src
) != 0)
86 "Wrong result in function %s dst \"%" sfmt
"\" src \"%" sfmt
"\"",
87 impl
->name
, dst
, src
);
94 hp_timing_t start
__attribute ((unused
));
95 hp_timing_t stop
__attribute ((unused
));;
96 hp_timing_t best_time
= ~ (hp_timing_t
) 0;
99 for (i
= 0; i
< 32; ++i
)
101 HP_TIMING_NOW (start
);
102 CALL (impl
, dst
, src
);
103 HP_TIMING_NOW (stop
);
104 HP_TIMING_BEST (best_time
, start
, stop
);
107 printf ("\t%zd", (size_t) best_time
);
112 do_test (size_t align1
, size_t align2
, size_t len
, int max_char
)
116 /* For wcscpy: align1 and align2 here mean alignment not in bytes,
117 but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t))
118 len for wcschr here isn't in bytes but it's number of wchar_t symbols. */
120 if ((align1
+ len
) * sizeof(CHAR
) >= page_size
)
124 if ((align2
+ len
) * sizeof(CHAR
) >= page_size
)
127 s1
= (CHAR
*) (buf1
) + align1
;
128 s2
= (CHAR
*) (buf2
) + align2
;
130 for (i
= 0; i
< len
; i
++)
131 s1
[i
] = 32 + 23 * i
% (max_char
- 32);
135 printf ("Length %4zd, alignments in bytes %2zd/%2zd:", len
, align1
* sizeof(CHAR
), align2
* sizeof(CHAR
));
137 FOR_EACH_IMPL (impl
, 0)
138 do_one_test (impl
, s2
, s1
, len
);
145 do_random_tests (void)
147 size_t i
, j
, n
, align1
, align2
, len
;
148 UCHAR
*p1
= (UCHAR
*) (buf1
+ page_size
) - 512;
149 UCHAR
*p2
= (UCHAR
*) (buf2
+ page_size
) - 512;
152 for (n
= 0; n
< ITERATIONS
; n
++)
154 /* For wcsrchr: align1 and align2 here mean align not in bytes,
155 but in wchar_ts, in bytes it will equal to align * (sizeof
156 (wchar_t)). For strrchr we need to check all alignments from
157 0 to 63 since some assembly implementations have separate
158 prolog for alignments more 48. */
160 align1
= random () & (63 / sizeof(CHAR
));
162 align2
= random () & (63 / sizeof(CHAR
));
164 align2
= align1
+ (random () & 24);
165 len
= random () & 511;
170 len
= 510 - j
- (random () & 7);
171 j
= len
+ align1
+ 64;
174 for (i
= 0; i
< j
; i
++)
176 if (i
== len
+ align1
)
180 p1
[i
] = random () & BIG_CHAR
;
181 if (i
>= align1
&& i
< len
+ align1
&& !p1
[i
])
182 p1
[i
] = (random () & SMALL_CHAR
) + 3;
186 FOR_EACH_IMPL (impl
, 1)
188 MEMSET (p2
- 64, '\1', 512 + 64);
189 res
= (UCHAR
*) CALL (impl
, (CHAR
*) (p2
+ align2
), (CHAR
*) (p1
+ align1
));
190 if (res
!= STRCPY_RESULT (p2
+ align2
, len
))
192 error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd) %p != %p",
193 n
, impl
->name
, align1
, align2
, len
, res
,
194 STRCPY_RESULT (p2
+ align2
, len
));
197 for (j
= 0; j
< align2
+ 64; ++j
)
199 if (p2
[j
- 64] != '\1')
201 error (0, 0, "Iteration %zd - garbage before, %s (%zd, %zd, %zd)",
202 n
, impl
->name
, align1
, align2
, len
);
207 for (j
= align2
+ len
+ 1; j
< 512; ++j
)
211 error (0, 0, "Iteration %zd - garbage after, %s (%zd, %zd, %zd)",
212 n
, impl
->name
, align1
, align2
, len
);
217 if (MEMCMP (p1
+ align1
, p2
+ align2
, len
+ 1))
219 error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd)",
220 n
, impl
->name
, align1
, align2
, len
);
235 FOR_EACH_IMPL (impl
, 0)
236 printf ("\t%s", impl
->name
);
239 for (i
= 0; i
< 16; ++i
)
241 do_test (0, 0, i
, SMALL_CHAR
);
242 do_test (0, 0, i
, BIG_CHAR
);
243 do_test (0, i
, i
, SMALL_CHAR
);
244 do_test (i
, 0, i
, BIG_CHAR
);
247 for (i
= 1; i
< 8; ++i
)
249 do_test (0, 0, 8 << i
, SMALL_CHAR
);
250 do_test (8 - i
, 2 * i
, 8 << i
, SMALL_CHAR
);
253 for (i
= 1; i
< 8; ++i
)
255 do_test (i
, 2 * i
, 8 << i
, SMALL_CHAR
);
256 do_test (2 * i
, i
, 8 << i
, BIG_CHAR
);
257 do_test (i
, i
, 8 << i
, SMALL_CHAR
);
258 do_test (i
, i
, 8 << i
, BIG_CHAR
);
265 #include "../test-skeleton.c"
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