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42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/* Copyright (C) 1991-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 <string.h>
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#undef strcspn
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#ifndef STRCSPN
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# define STRCSPN strcspn
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#endif
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/* Return the length of the maximum initial segment of S
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which contains no characters from REJECT. */
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size_t
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STRCSPN (const char *s, const char *reject)
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{
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size_t count = 0;
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while (*s != '\0')
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if (strchr (reject, *s++) == NULL)
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++count;
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else
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return count;
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return count;
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}
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libc_hidden_builtin_def (strcspn)
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