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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | VERSIONS | ATTRIBUTES | CONFORMING TO | EXAMPLE | SEE ALSO | COLOPHON |
MEMPCPY(3) Linux Programmer's Manual MEMPCPY(3)
mempcpy, wmempcpy - copy memory area
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <string.h>
void *mempcpy(void *dest, const void *src, size_t n);
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <wchar.h>
wchar_t *wmempcpy(wchar_t *dest, const wchar_t *src, size_t n);
The mempcpy() function is nearly identical to the memcpy(3) function.
It copies n bytes from the object beginning at src into the object
pointed to by dest. But instead of returning the value of dest it
returns a pointer to the byte following the last written byte.
This function is useful in situations where a number of objects shall
be copied to consecutive memory positions.
The wmempcpy() function is identical but takes wchar_t type arguments
and copies n wide characters.
dest + n.
mempcpy() first appeared in glibc in version 2.1.
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────┼───────────────┼─────────┤
│mempcpy(), wmempcpy() │ Thread safety │ MT-Safe │
└──────────────────────┴───────────────┴─────────┘
This function is a GNU extension.
void *
combine(void *o1, size_t s1, void *o2, size_t s2)
{
void *result = malloc(s1 + s2);
if (result != NULL)
mempcpy(mempcpy(result, o1, s1), o2, s2);
return result;
}
memccpy(3), memcpy(3), memmove(3), wmemcpy(3)
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latest version of this page, can be found at
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GNU 2015-03-02 MEMPCPY(3)
Pages that refer to this page: memcpy(3), wmemcpy(3)