получить длину префиксной подстроки (get length of a prefix substring)
Имя (Name)
strspn, strcspn - get length of a prefix substring
Синопсис (Synopsis)
#include <string.h>
size_t strspn(const char *s, const char *accept);
size_t strcspn(const char *s, const char *reject);
Описание (Description)
The strspn() function calculates the length (in bytes) of the
initial segment of s which consists entirely of bytes in accept.
The strcspn() function calculates the length of the initial
segment of s which consists entirely of bytes not in reject.
Возвращаемое значение (Return value)
The strspn() function returns the number of bytes in the initial
segment of s which consist only of bytes from accept.
The strcspn() function returns the number of bytes in the initial
segment of s which are not in the string reject.
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│strspn(), strcspn() │ Thread safety │ MT-Safe │
└──────────────────────────────────────┴───────────────┴─────────┘
Стандарты (Conforming to)
POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD.
Смотри также (See also)
index(3), memchr(3), rindex(3), strchr(3), string(3), strpbrk(3),
strsep(3), strstr(3), strtok(3), wcscspn(3), wcsspn(3)
