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       strcmp.3 (721B)
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            1 .TH strcmp 3
            2 .SH NAME
            3 strcmp - compare strings
            4 .SH SYNOPSIS
            5 #include <string.h>
            6 
            7 int strcmp(const char *s1, const char *s2)
            8 .SH DESCRIPTION
            9 The
           10 .BR strcmp ()
           11 function compares the string
           12 pointed to by
           13 .I s1
           14 to the string pointed to by
           15 .IR s2 .
           16 .PP
           17 The value returned shall be used to determine
           18 if a string is lexicographically
           19 greater than, lesser than or equal to
           20 the other string.
           21 .PP
           22 The function shall not modify either of the strings.
           23 .SH RETURN VALUE
           24 The
           25 .BR strcmp ()
           26 function shall return an integer
           27 greater than, equal to or lesser than 0,
           28 if the string pointed to by
           29 .I s1
           30 is greater than, equal to or lesser than
           31 the string pointed to by
           32 .IR s2 ,
           33 respectively.
           34 .SH STANDARDS
           35 ISO/IEC 9899:1999 Section 7.21.4.2