1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/* Measure stpncpy functions.
Copyright (C) 2013-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#define STRNCPY_RESULT(dst, len, n) ((dst) + ((len) > (n) ? (n) : (len)))
#define TEST_MAIN
#ifndef WIDE
# define TEST_NAME "stpncpy"
#else
# define TEST_NAME "wcpncpy"
#endif /* WIDE */
#include "bench-string.h"
#ifndef WIDE
# define CHAR char
# define SIMPLE_STPNCPY simple_stpncpy
# define STUPID_STPNCPY stupid_stpncpy
# define STPNCPY stpncpy
# define STRNLEN strnlen
#else
# include <wchar.h>
# define CHAR wchar_t
# define SIMPLE_STPNCPY simple_wcpncpy
# define STUPID_STPNCPY stupid_wcpncpy
# define STPNCPY wcpncpy
# define STRNLEN wcsnlen
#endif /* WIDE */
CHAR *SIMPLE_STPNCPY (CHAR *, const CHAR *, size_t);
CHAR *STUPID_STPNCPY (CHAR *, const CHAR *, size_t);
IMPL (STUPID_STPNCPY, 0)
IMPL (SIMPLE_STPNCPY, 0)
IMPL (STPNCPY, 1)
CHAR *
SIMPLE_STPNCPY (CHAR *dst, const CHAR *src, size_t n)
{
while (n--)
if ((*dst++ = *src++) == '\0')
{
size_t i;
for (i = 0; i < n; ++i)
dst[i] = '\0';
return dst - 1;
}
return dst;
}
CHAR *
STUPID_STPNCPY (CHAR *dst, const CHAR *src, size_t n)
{
size_t nc = STRNLEN (src, n);
size_t i;
for (i = 0; i < nc; ++i)
dst[i] = src[i];
for (; i < n; ++i)
dst[i] = '\0';
return dst + nc;
}
#undef CHAR
#include "bench-strncpy.c"
|
