strncmp - compare two substrings

Syntax

#include <string.h> int strncmp(const char *s1, const char *s2, size_t n);

Description strncmp() compares strings s1 and s2 lexically up to a maximum length of n, e.g.

	strncmp("Sie","Siemens",3) returns 0 (equal), because the first three characters of both arguments match one another.
Return val.	Integer value:
	< 0 = 0 > 0	In the first n characters, s1 is lexically less than s2. In the first n characters, s1 and s2 are lexically equal. In the first n characters, s1 is lexically greater than s2.
Notes	Strings terminated with the null byte (\0) are expected as arguments. The collating sequence is based on the EBCDIC character set.
See also	strcmp(), string.h.