ref: 81678b9576d8f3922b1b8df5e1b523f04bc6c783
dir: /doc/man3/memmove.3/
.TH memmove 3 .SH NAME memmove - copy bytes in memory with overlapping areas .SH SYNOPSIS #include <string.h> void *memmove (void *s1, const void *s2, size_t n) .SH DESCRIPTION The .BR memmove () function copies the first .I n bytes of the object pointed to by .I s2 to the object pointed to by .IR s1 . The .BR memmove () function facilitates copying between overlapping memory blocks. The function shall not copy anything if .I n is equal to 0. .SH RETURN VALUE The .BR memmove () function shall return the pointer .IR s1 . .SH STANDARDS ISO/IEC 9899:1999 Section 7.21.2.2