Plan 9 from Bell Labs’s /usr/web/sources/patch/maybe/ape-updates/strspn.c

Copyright © 2021 Plan 9 Foundation.
Distributed under the MIT License.
Download the Plan 9 distribution.


#include <string.h>

#define	N	256

size_t
strspn(const char *s, const char *b)
{
	char map[N];
	const char *os;

	memset(map, 0, N);
	while(*b)
		map[*(unsigned char *)b++] = 1;
	os = s;
	while(map[*(unsigned char *)s++])
		;
	return s - os - 1;
}

Bell Labs OSI certified Powered by Plan 9

(Return to Plan 9 Home Page)

Copyright © 2021 Plan 9 Foundation. All Rights Reserved.
Comments to webmaster@9p.io.