8420f43b86
These functions are useful for determining prefixes, as with file system paths. They are required by littlefs. Signed-off-by: Peter A. Bigot <pab@pabigot.com>
32 lines
478 B
C
32 lines
478 B
C
/*
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* Copyright (c) 2019 Peter Bigot Consulting, LLC
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <string.h>
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#include <string.h>
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size_t strspn(const char *s,
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const char *accept)
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{
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const char *ins = s;
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while ((*s != '\0') && (strchr(accept, *s) != NULL)) {
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++s;
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}
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return s - ins;
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}
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size_t strcspn(const char *s,
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const char *reject)
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{
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const char *ins = s;
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while ((*s != '\0') && (strchr(reject, *s) == NULL)) {
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++s;
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}
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return s - ins;
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}
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