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a1eaacb1 | 1 | '\" t |
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2 | .\" Copyright (c) Bruno Haible <haible@clisp.cons.org> |
3 | .\" | |
e4a74ca8 | 4 | .\" SPDX-License-Identifier: GPL-2.0-or-later |
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5 | .\" |
6 | .\" References consulted: | |
7 | .\" GNU glibc-2 source code and manual | |
8 | .\" Dinkumware C library reference http://www.dinkumware.com/ | |
008f1ecc | 9 | .\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html |
fea681da | 10 | .\" |
4c1c5274 | 11 | .TH wmemcmp 3 (date) "Linux man-pages (unreleased)" |
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12 | .SH NAME |
13 | wmemcmp \- compare two arrays of wide-characters | |
1e6d56fe AC |
14 | .SH LIBRARY |
15 | Standard C library | |
8fc3b2cf | 16 | .RI ( libc ", " \-lc ) |
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17 | .SH SYNOPSIS |
18 | .nf | |
19 | .B #include <wchar.h> | |
68e4db0a | 20 | .PP |
1eed67e7 AC |
21 | .BI "int wmemcmp(const wchar_t " s1 [. n "], const wchar_t " s2 [. n "], \ |
22 | size_t " n ); | |
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23 | .fi |
24 | .SH DESCRIPTION | |
60a90ecd MK |
25 | The |
26 | .BR wmemcmp () | |
27 | function is the wide-character equivalent of the | |
28 | .BR memcmp (3) | |
29 | function. | |
35cfd378 | 30 | It compares the |
1ae6b2c7 | 31 | .I n |
35cfd378 MK |
32 | wide-characters starting at |
33 | .I s1 | |
34 | and the | |
35 | .I n | |
36 | wide-characters starting at | |
37 | .IR s2 . | |
47297adb | 38 | .SH RETURN VALUE |
60a90ecd MK |
39 | The |
40 | .BR wmemcmp () | |
41 | function returns | |
c13182ef | 42 | zero if the wide-character arrays of size |
35cfd378 MK |
43 | .I n |
44 | at | |
1ae6b2c7 | 45 | .I s1 |
35cfd378 MK |
46 | and |
47 | .I s2 | |
48 | are equal. | |
c13182ef | 49 | It returns an integer greater than |
35cfd378 MK |
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] . | |
c13182ef | 59 | It returns an integer less than zero if |
35cfd378 MK |
60 | at the first differing position |
61 | .I i | |
287bfbdb MK |
62 | .RI ( i |
63 | < | |
35cfd378 MK |
64 | .IR n ), |
65 | the corresponding | |
287bfbdb MK |
66 | wide-character |
67 | .I s1[i] | |
68 | is less than | |
69 | .IR s2[i] . | |
500d891e | 70 | .SH ATTRIBUTES |
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71 | For an explanation of the terms used in this section, see |
72 | .BR attributes (7). | |
73 | .TS | |
74 | allbox; | |
c466875e | 75 | lbx lb lb |
2aba859b PH |
76 | l l l. |
77 | Interface Attribute Value | |
78 | T{ | |
9e54434e BR |
79 | .na |
80 | .nh | |
500d891e | 81 | .BR wmemcmp () |
2aba859b PH |
82 | T} Thread safety MT-Safe |
83 | .TE | |
c466875e | 84 | .sp 1 |
3113c7f3 | 85 | .SH STANDARDS |
4131356c AC |
86 | C11, POSIX.1-2008. |
87 | .SH HISTORY | |
88 | POSIX.1-2001, C99. | |
47297adb | 89 | .SH SEE ALSO |
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90 | .BR memcmp (3), |
91 | .BR wcscmp (3) |