SIMPLE SOLUTIONS

MEMPCPY, WMEMPCPY - reference manual online

Copy memory area.

Chapter
2015-03-02
MEMPCPY(3)                          Linux Programmer's Manual                          MEMPCPY(3)

NAME mempcpy, wmempcpy - copy memory area
SYNOPSIS #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);
DESCRIPTION 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 consec‐ utive memory positions. The wmempcpy() function is identical but takes wchar_t type arguments and copies n wide characters.
RETURN VALUE dest + n.
VERSIONS mempcpy() first appeared in glibc in version 2.1.
ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ┌──────────────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├──────────────────────┼───────────────┼─────────┤ │mempcpy(), wmempcpy() │ Thread safety │ MT-Safe │ └──────────────────────┴───────────────┴─────────┘
CONFORMING TO This function is a GNU extension.
EXAMPLE 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; }
SEE ALSO memccpy(3), memcpy(3), memmove(3), wmemcpy(3)
COLOPHON This page is part of release 4.04 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at http://www.kernel.org/doc/man-pages/.
GNU 2015-03-02 MEMPCPY(3)
This manual Reference Other manuals
mempcpy(3) referred by memcpy(3) | wmemcpy(3)
refer to attributes(7) | feature_test_macros(7) | memccpy(3) | memcpy(3) | memmove(3) | wmemcpy(3)