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LETTERmemcmpULETTER Compares two memory blocks.

Overview
#include <string.h>

r = memcmp(mem1,mem2,n);

int r;
const void *mem1;
const void *mem2;
size_t n;

Portability
ANSI

Description
Compares the two memory blocks "mem1" and "mem2" for "n" bytes. Similar to other comparison routines, zero is returned if the entire memory blocks are identical. A value smaller than zero is returned, if the first different character in "mem1" is smaller than the corrospending character in "mem2", and a value greater than zero is returned, if the first different character in "mem1" is bigger than the corrospending character in "mem2".

Returns
0, if the memory blocks are identical.
>0, if "mem1" is "greater" than "mem2".
<0, if "mem1" is "smaller" than "mem2".

See also
strcmp , strncmp