From 9702047480d9002522936c5e1e1ebe16f696880d Mon Sep 17 00:00:00 2001 From: Siddhesh Poyarekar Date: Tue, 4 Jun 2013 16:48:56 +0530 Subject: Copy over string performance tests into benchtests Copy over already existing string performance tests into benchtests. Bits not related to performance measurements have been omitted. --- benchtests/bench-stpncpy.c | 59 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 benchtests/bench-stpncpy.c (limited to 'benchtests/bench-stpncpy.c') diff --git a/benchtests/bench-stpncpy.c b/benchtests/bench-stpncpy.c new file mode 100644 index 0000000000..65ed800074 --- /dev/null +++ b/benchtests/bench-stpncpy.c @@ -0,0 +1,59 @@ +/* Measure stpncpy functions. + Copyright (C) 2013 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 + . */ + +#define STRNCPY_RESULT(dst, len, n) ((dst) + ((len) > (n) ? (n) : (len))) +#define TEST_MAIN +#define TEST_NAME "stpncpy" +#include "bench-string.h" + +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; +} + +#include "bench-strncpy.c" -- cgit 1.4.1