Compares the specified number of bytes of two buffers and returns a value indicating their relationship.

#include <string.h>

int memcmp (const void *buf1, const void *buf2, size_t count);

#include <wchar.h>

int wmemcmp(const wchar_t * mem1, const wchar_t * mem2, size_t num);

Parameters

buf1

First buffer.

buf2

Second buffer.

count

Number of characters. (Compares bytes for memcmp, wide characters for wmemcmp).

Return Values

<0	buf1 is less than buf2.
=0	buf1 is identical to buf2
>0	buf1 is greater than buf2

Requirements