memmem(3) — Справочная страница Linux

memmem(3)               Library Functions Manual               memmem(3)

ИМЯ

       memmem - locate a substring

БИБЛИОТЕКА

       Standard C library (libc, -lc)

СИНТАКСИС

       #define _GNU_SOURCE         /* See feature_test_macros(7) */
       #include <string.h>

       void *memmem(const void haystack[.haystacklen], size_t haystacklen,
                    const void needle[.needlelen], size_t needlelen);

ОПИСАНИЕ

       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.

ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ

       The memmem() function returns a pointer to the beginning of the
       substring, or NULL if the substring is not found.

АТРИБУТЫ

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌─────────────────────────────────────┬───────────────┬─────────┐
       │ Interface                           │ Attribute     │ Value   │
       ├─────────────────────────────────────┼───────────────┼─────────┤
       │ memmem()                            │ Thread safety │ MT-Safe │
       └─────────────────────────────────────┴───────────────┴─────────┘

СТАНДАРТЫ

       None.

ИСТОРИЯ

       musl libc 0.9.7; FreeBSD 6.0, OpenBSD 5.4, NetBSD, Illumos.

ОШИБКИ

       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.

СМОТРИТЕ ТАКЖЕ

       bstring(3), strstr(3)

КОЛОФОН

       This page is part of the man-pages (Linux kernel and C library
       user-space interface documentation) project.  Information about
       the project can be found at 
       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
       This page was obtained from the tarball man-pages-6.9.1.tar.gz
       fetched from
       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
       2024-06-26.  If you discover any rendering problems in this HTML
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       to-date source for the page, or you have corrections or
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       part of the original manual page), send a mail to
       man-pages@man7.org

Linux man-pages 6.9.1          2024-05-02                      memmem(3)

Страницы, которые ссылаются на эту страницу: bstring(3), memchr(3), strstr(3)