Last change
on this file was 337, checked in by coas-nagasima, 6 years ago |
ASP3版ECNLを追加
|
-
Property svn:eol-style
set to
native
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Property svn:mime-type
set to
text/x-csrc;charset=UTF-8
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File size:
494 bytes
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Rev | Line | |
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[337] | 1 | #include <string.h>
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| 2 |
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| 3 | #define BITOP(a,b,op) \
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| 4 | ((a)[(size_t)(b)/(8*sizeof *(a))] op (size_t)1<<((size_t)(b)%(8*sizeof *(a))))
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| 5 |
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| 6 | char *__strchrnul(const char *, int);
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| 7 |
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| 8 | size_t strcspn(const char *s, const char *c)
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| 9 | {
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| 10 | const char *a = s;
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| 11 | size_t byteset[32/sizeof(size_t)];
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| 12 |
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| 13 | if (!c[0] || !c[1]) return __strchrnul(s, *c)-a;
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| 14 |
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| 15 | memset(byteset, 0, sizeof byteset);
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| 16 | for (; *c && BITOP(byteset, *(unsigned char *)c, |=); c++);
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| 17 | for (; *s && !BITOP(byteset, *(unsigned char *)s, &); s++);
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| 18 | return s-a;
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| 19 | }
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