MEMPCPY(3) Linux Programmer's Manual MEMPCPY(3)

NAME
       mempcpy, wmempcpy  - copy memory area

SYNOPSIS
       #define GNUSOURCE         /* See featuretestmacros(7) */
       #include 

       void *mempcpy(void *dest, const void *src, sizet n);

       #define GNUSOURCE         /* See featuretestmacros(7) */
       #include 

       wchart *wmempcpy(wchart *dest, const wchart *src, sizet 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 consecutive memory positions.

       The  wmempcpy()  function is identical but takes wchart 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, sizet s1, void *o2, sizet 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 3.53 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.



GNU                               2008-08-12                        MEMPCPY(3)