man3/wmemcmp.3

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  10 .\" References consulted:
  11 .\"   GNU glibc-2 source code and manual
  12 .\"   Dinkumware C library reference http://www.dinkumware.com/
  13 .\"   OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html
  14 .\"
  15 .TH WMEMCMP 3  2015-08-08 "GNU" "Linux Programmer's Manual"
  16 .SH NAME
  17 wmemcmp \- compare two arrays of wide-characters
  18 .SH SYNOPSIS
  19 .nf
  20 .B #include <wchar.h>
  21 .PP
  22 .BI "int wmemcmp(const wchar_t *" s1 ", const wchar_t *" s2 ", size_t " n );
  23 .fi
  24 .SH DESCRIPTION
  25 The
  26 .BR wmemcmp ()
  27 function is the wide-character equivalent of the
  28 .BR memcmp (3)
  29 function.
  30 It compares the
  31 .IR n
  32 wide-characters starting at
  33 .I s1
  34 and the
  35 .I n
  36 wide-characters starting at
  37 .IR s2 .
  38 .SH RETURN VALUE
  39 The
  40 .BR wmemcmp ()
  41 function returns
  42 zero if the wide-character arrays of size
  43 .I n
  44 at
  45 .IR s1
  46 and
  47 .I s2
  48 are equal.
  49 It returns an integer greater than
  50 zero if at the first differing position
  51 .I i
  52 .RI ( i " <"
  53 .IR n ),
  54 the
  55 corresponding wide-character
  56 .I s1[i]
  57 is greater than
  58 .IR s2[i] .
  59 It returns an integer less than zero if
  60 at the first differing position
  61 .I i
  62 .RI ( i
  63 <
  64 .IR n ),
  65 the corresponding
  66 wide-character
  67 .I s1[i]
  68 is less than
  69 .IR s2[i] .
  70 .SH ATTRIBUTES
  71 For an explanation of the terms used in this section, see
  72 .BR attributes (7).
  73 .TS
  74 allbox;
  75 lb lb lb
  76 l l l.
  77 Interface       Attribute       Value
  78 T{
  79 .BR wmemcmp ()
  80 T}      Thread safety   MT-Safe
  81 .TE
  82 .SH CONFORMING TO
  83 POSIX.1-2001, POSIX.1-2008, C99.
  84 .SH SEE ALSO
  85 .BR memcmp (3),
  86 .BR wcscmp (3)