1 .\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
3 .\" %%%LICENSE_START(VERBATIM)
4 .\" Permission is granted to make and distribute verbatim copies of this
5 .\" manual provided the copyright notice and this permission notice are
6 .\" preserved on all copies.
8 .\" Permission is granted to copy and distribute modified versions of this
9 .\" manual under the conditions for verbatim copying, provided that the
10 .\" entire resulting derived work is distributed under the terms of a
11 .\" permission notice identical to this one.
13 .\" Since the Linux kernel and libraries are constantly changing, this
14 .\" manual page may be incorrect or out-of-date. The author(s) assume no
15 .\" responsibility for errors or omissions, or for damages resulting from
16 .\" the use of the information contained herein. The author(s) may not
17 .\" have taken the same level of care in the production of this manual,
18 .\" which is licensed free of charge, as they might when working
21 .\" Formatted or processed versions of this manual, if unaccompanied by
22 .\" the source, must acknowledge the copyright and authors of this work.
25 .\" References consulted:
26 .\" Linux libc source code
27 .\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
29 .\" Modified Sat Jul 24 18:49:23 1993 by Rik Faith (faith@cs.unc.edu)
30 .TH MEMSET 3 2021-03-22 "GNU" "Linux Programmer's Manual"
32 memset \- fill memory with a constant byte
35 .B #include <string.h>
37 .BI "void *memset(void *" s ", int " c ", size_t " n );
42 function fills the first
45 memory area pointed to by
47 with the constant byte
52 function returns a pointer to the memory area
55 For an explanation of the terms used in this section, see
63 Interface Attribute Value
66 T} Thread safety MT-Safe
72 POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD.