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f1ffad98be
This patch provides optimized versions of strspn and wcsspn with the z13 vector instructions. ChangeLog: * sysdeps/s390/multiarch/strspn-c.c: New File. * sysdeps/s390/multiarch/strspn-vx.S: Likewise. * sysdeps/s390/multiarch/strspn.c: Likewise. * sysdeps/s390/multiarch/wcsspn-c.c: Likewise. * sysdeps/s390/multiarch/wcsspn-vx.S: Likewise. * sysdeps/s390/multiarch/wcsspn.c: Likewise. * wcsmbs/wcsspn.c: Use WCSSPN if defined. * sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strspn and wcsspn functions. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add ifunc test for strspn, wcsspn. * string/test-strspn.c: Add wcsspn support. * wcsmbs/test-wcsspn.c: New File. * wcsmbs/Makefile (strop-tests): Add wcsspn. * benchtests/bench-strspn.c: Add wcsspn support. * benchtests/bench-wcsspn.c: New File. * benchtests/Makefile (wcsmbs-bench): Add wcsspn.
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/* Copyright (C) 1995-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <wchar.h>
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#ifdef WCSSPN
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# define wcsspn WCSSPN
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#endif
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/* Return the length of the maximum initial segment
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of WCS which contains only wide-characters in ACCEPT. */
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size_t
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wcsspn (wcs, accept)
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const wchar_t *wcs;
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const wchar_t *accept;
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{
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const wchar_t *p;
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const wchar_t *a;
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size_t count = 0;
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for (p = wcs; *p != L'\0'; ++p)
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{
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for (a = accept; *a != L'\0'; ++a)
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if (*p == *a)
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break;
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if (*a == L'\0')
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return count;
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else
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++count;
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}
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return count;
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}
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libc_hidden_def (wcsspn)
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