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memset(3)

memset(3)Library Functions Manualmemset(3)

memset - fill memory with a constant byte

Standard C library (libc, -lc)

#include <string.h>
void *memset(void s[.n], int c, size_t n);

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

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

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

InterfaceAttributeValue
memset ()Thread safetyMT-Safe

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

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

2022-12-29Linux man-pages 6.03