questions in memset

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LEARN ABOUT PLAN9

memset

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

NAME

       memset - fill memory with a constant byte

SYNOPSIS

       #include <string.h>

       void *memset(void *s, int c, size_t n);

DESCRIPTION

       The memset() function fills the first n bytes of the memory area pointed to by s with the constant byte c.

RETURN VALUE

       The memset() function returns a pointer to the memory area s.

ATTRIBUTES

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

       +----------+---------------+---------+
       |Interface | Attribute	  | Value   |
       +----------+---------------+---------+
       |memset()  | Thread safety | MT-Safe |
       +----------+---------------+---------+
CONFORMING TO

       POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD.

SEE ALSO

       bstring(3), bzero(3), swab(3), wmemset(3)

COLOPHON

       This  page is part of release 4.15 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 https://www.kernel.org/doc/man-pages/.

GNU
								    2017-03-13								 MEMSET(3)

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