benchtests/bench-stpncpy.c

   1 /* Measure stpncpy functions.
   2    Copyright (C) 2013-2023 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 *
  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"