scc

simple c99 compiler
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memchr.3 (648B)

      1 .TH memchr 3
      2 .SH NAME
      3 memchr - search for a byte in a memory block
      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 scans the first
     12 .I n
     13 bytes of the memory block pointed to by
     14 .I s
     15 for the first occurrence of the byte value
     16 obtained by converting
     17 .I c
     18 to unsigned char.
     19 Each byte in the block is treated as unsigned char.
     20 .PP
     21 When
     22 .I n
     23 is zero, the search is not performed.
     24 .SH RETURN VALUE
     25 The
     26 .BR memchr ()
     27 function returns a pointer to the first matching byte,
     28 or a null pointer if the byte is not found within the block.
     29 .SH STANDARDS
     30 ISO/IEC 9899:1999 Section 7.21.5.1