memset(3) Library Functions Manual memset(3) memset - (libc -lc) #include void *memset(size_t n; void s[n], int c, size_t n); memset() n s c. memset() s. attributes(7). +------------+------------------------------------+--------------------+ || | | +------------+------------------------------------+--------------------+ |memset() | | MT-Safe | +------------+------------------------------------+--------------------+ C11, POSIX.1-2008. POSIX.1-2001 C89 SVr4 4.3BSD. bstring(3), bzero(3), swab(3), wmemset(3) 3 . . : . 6.18 8 2026 memset(3)