найти подстроку (locate a substring)
Имя (Name)
memmem - locate a substring
Синопсис (Synopsis)
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <string.h>
void *memmem(const void *haystack, size_t haystacklen,
const void *needle, size_t needlelen);
Описание (Description)
The memmem() function finds the start of the first occurrence of
the substring needle of length needlelen in the memory area
haystack of length haystacklen.
Возвращаемое значение (Return value)
The memmem() function returns a pointer to the beginning of the
substring, or NULL if the substring is not found.
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│memmem() │ Thread safety │ MT-Safe │
└──────────────────────────────────────┴───────────────┴─────────┘
Стандарты (Conforming to)
This function is not specified in POSIX.1, but is present on a
number of other systems.
Ошибки (баги) (Bugs)
In glibc 2.0, if needle is empty, memmem() returns a pointer to
the last byte of haystack. This is fixed in glibc 2.1.
Смотри также (See also)
bstring(3), strstr(3)
