MEMSET(3) Linux Programmer's Manual MEMSET(3) NAME memset - fill memory with a constant byte SYNOPSIS #include 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 4.16 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)