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   memmem    ( 3 )

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Имя (Name)

memmem - locate a substring

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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);

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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.

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Возвращаемое значение (Return value)

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

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Атрибуты (Attributes)

For an explanation of the terms used in this section, see
       attributes(7).

       ┌──────────────────────────────────────┬───────────────┬─────────┐
       │Interface                             │ Attribute     │ Value   │
       ├──────────────────────────────────────┼───────────────┼─────────┤
       │memmem()                              │ Thread safety │ MT-Safe │
       └──────────────────────────────────────┴───────────────┴─────────┘

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Стандарты (Conforming to)

This function is not specified in POSIX.1, but is present on a
       number of other systems.

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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.

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Смотри также (See also)

bstring(3), strstr(3)

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