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1// ------------------------------------------------------------------------------\r
2//\r
3// Copyright (c) 2019, Pete Batard. All rights reserved.\r
4// Copyright (c) 2021, Arm Limited. All rights reserved.<BR>\r
5//\r
6// SPDX-License-Identifier: BSD-2-Clause-Patent\r
7//\r
8// ------------------------------------------------------------------------------\r
9\r
10#if defined (_M_ARM64)\r
11typedef unsigned __int64 size_t;\r
12#else\r
13typedef unsigned __int32 size_t;\r
14#endif\r
15\r
16int\r
17memcmp (\r
18 void *,\r
19 void *,\r
20 size_t\r
21 );\r
22\r
23#pragma intrinsic(memcmp)\r
24#pragma function(memcmp)\r
25int\r
26memcmp (\r
27 const void *s1,\r
28 const void *s2,\r
29 size_t n\r
30 )\r
31{\r
32 unsigned char const *t1;\r
33 unsigned char const *t2;\r
34\r
35 t1 = s1;\r
36 t2 = s2;\r
37\r
38 while (n-- != 0) {\r
39 if (*t1 != *t2) {\r
40 return (int)*t1 - (int)*t2;\r
41 }\r
42\r
43 t1++;\r
44 t2++;\r
45 }\r
46\r
47 return 0;\r
48}\r