1 /**************************************************************************/
2 /* */
3 /* Copyright (c) Microsoft Corporation. All rights reserved. */
4 /* */
5 /* This software is licensed under the Microsoft Software License */
6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */
7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
8 /* and in the root directory of this software. */
9 /* */
10 /**************************************************************************/
11
12
13 /**************************************************************************/
14 /**************************************************************************/
15 /** */
16 /** GUIX Component */
17 /** */
18 /** Utility (Utility) */
19 /** */
20 /**************************************************************************/
21
22 #define GX_SOURCE_CODE
23
24
25 /* Include necessary system files. */
26
27 #include "gx_api.h"
28 #include "gx_utility.h"
29
30
31 /**************************************************************************/
32 /* */
33 /* FUNCTION RELEASE */
34 /* */
35 /* _gx_utility_string_compare PORTABLE C */
36 /* 6.1 */
37 /* AUTHOR */
38 /* */
39 /* Kenneth Maxwell, Microsoft Corporation */
40 /* */
41 /* DESCRIPTION */
42 /* */
43 /* This function compares two strings character by character. */
44 /* */
45 /* INPUT */
46 /* */
47 /* string_1 String to be compared */
48 /* string_2 Another string to be compared */
49 /* count number of bytes to compare */
50 /* */
51 /* OUTPUT */
52 /* */
53 /* [GX_TRUE | GX_FALSE] [equal | not equal] */
54 /* */
55 /* CALLS */
56 /* */
57 /* None */
58 /* */
59 /* CALLED BY */
60 /* */
61 /* GUIX Internal Code */
62 /* */
63 /* RELEASE HISTORY */
64 /* */
65 /* DATE NAME DESCRIPTION */
66 /* */
67 /* 09-30-2020 Kenneth Maxwell Initial Version 6.1 */
68 /* */
69 /**************************************************************************/
_gx_utility_string_compare(GX_CONST GX_STRING * string_1,GX_CONST GX_STRING * string_2,UINT count)70 GX_BOOL _gx_utility_string_compare(GX_CONST GX_STRING *string_1, GX_CONST GX_STRING *string_2, UINT count)
71 {
72 UINT index = 0;
73
74 if ((string_1 -> gx_string_length < count) || (string_2 -> gx_string_length < count))
75 {
76 /* Not equal.*/
77 return GX_FALSE;
78 }
79
80 while (index < count)
81 {
82 if (string_1 -> gx_string_ptr[index] != string_2 -> gx_string_ptr[index])
83 {
84 /* Not equal. */
85 return GX_FALSE;
86 }
87
88 index++;
89 }
90
91 /* Equal. */
92 return GX_TRUE;
93 }
94
95
