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       memchr.3 (619B)
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            1 .TH memchr 3
            2 .SH NAME
            3 memchr - find byte in memory
            4 .SH SYNOPSIS
            5 #include <string.h>
            6 
            7 void *memchr(const void *s, int c, size_t n)
            8 .SH DESCRIPTION
            9 The
           10 .BR memchr ()
           11 function locates the first occurence of
           12 .I c
           13 (converted to an unsigned char)
           14 in the initial
           15 .I n
           16 characters
           17 (each interpreted as unsigned char)
           18 of the object pointed to by
           19 .IR s .
           20 .PP
           21 The function shall not try to locate
           22 .I c
           23 if
           24 .I n
           25 is equal to 0.
           26 .SH RETURN VALUE
           27 The
           28 .BR memchr ()
           29 function shall return a pointer to the located character
           30 or a null pointer if the character does not occur in the object.
           31 .SH STANDARDS
           32 ISO/IEC 9899:1999 Section 7.21.5.1