strncmp.3 (840B)
1 .TH strncmp 3 2 .SH NAME 3 strncmp - compare part of two strings 4 .SH SYNOPSIS 5 #include <string.h> 6 7 int strncmp(const char *s1, const char *s2, size_t n) 8 .SH DESCRIPTION 9 The 10 .BR strncmp () 11 function compares not more than 12 .I n 13 characters 14 (characters that follow a null character are not compared) 15 from the array pointed to by 16 .I s1 17 to the array pointed to by 18 .IR s2 . 19 .PP 20 The value returned shall be used to determine 21 if a string is lexicographically 22 greater than, lesser than or equal to 23 the other string. 24 .SH RETURN VALUE 25 The 26 .BR strncmp () 27 function shall return an integer greater than, 28 equal to, or lesser than 0, 29 if the string pointed to by 30 .I s1 31 is greater than, 32 equal to, or lesser than the string pointed to by 33 .IR s2 , 34 respectively. 35 .PP 36 The function shall return 0 if 37 .I n 38 is equal to 0. 39 .SH STANDARDS 40 ISO/IEC 9899:1999 Section 7.21.4.4