1 /* Measure stpncpy functions.
2 Copyright (C) 2013-2022 Free Software Foundation, Inc.
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 <https://www.gnu.org/licenses/>. */
18
19 #define STRNCPY_RESULT(dst, len, n) ((dst) + ((len) > (n) ? (n) : (len)))
20 #define TEST_MAIN
21 #ifndef WIDE
22 # define TEST_NAME "stpncpy"
23 #else
24 # define TEST_NAME "wcpncpy"
25 # define generic_stpncpy generic_wcpncpy
26 #endif /* WIDE */
27 #include "bench-string.h"
28
29 CHAR *
generic_stpncpy(CHAR * dst,const CHAR * src,size_t n)30 generic_stpncpy (CHAR *dst, const CHAR *src, size_t n)
31 {
32 size_t nc = STRNLEN (src, n);
33 MEMCPY (dst, src, nc);
34 dst += nc;
35 if (nc == n)
36 return dst;
37 return MEMSET (dst, 0, n - nc);
38 }
39
40 IMPL (STPNCPY, 1)
41 IMPL (generic_stpncpy, 0)
42
43 #include "bench-strncpy.c"
44