1 /*
2 * Copyright (c) 2009-2021, Google LLC
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of Google LLC nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #ifndef UPB_BASE_STRING_VIEW_H_
29 #define UPB_BASE_STRING_VIEW_H_
30
31 #include <string.h>
32
33 // Must be last.
34 #include "upb/port/def.inc"
35
36 #define UPB_STRINGVIEW_INIT(ptr, len) \
37 { ptr, len }
38
39 #define UPB_STRINGVIEW_FORMAT "%.*s"
40 #define UPB_STRINGVIEW_ARGS(view) (int)(view).size, (view).data
41
42 // LINT.IfChange(struct_definition)
43 typedef struct {
44 const char* data;
45 size_t size;
46 } upb_StringView;
47 // LINT.ThenChange(GoogleInternalName0)
48
49 #ifdef __cplusplus
50 extern "C" {
51 #endif
52
upb_StringView_FromDataAndSize(const char * data,size_t size)53 UPB_API_INLINE upb_StringView upb_StringView_FromDataAndSize(const char* data,
54 size_t size) {
55 upb_StringView ret;
56 ret.data = data;
57 ret.size = size;
58 return ret;
59 }
60
upb_StringView_FromString(const char * data)61 UPB_INLINE upb_StringView upb_StringView_FromString(const char* data) {
62 return upb_StringView_FromDataAndSize(data, strlen(data));
63 }
64
upb_StringView_IsEqual(upb_StringView a,upb_StringView b)65 UPB_INLINE bool upb_StringView_IsEqual(upb_StringView a, upb_StringView b) {
66 return a.size == b.size && memcmp(a.data, b.data, a.size) == 0;
67 }
68
69 #ifdef __cplusplus
70 } /* extern "C" */
71 #endif
72
73 #include "upb/port/undef.inc"
74
75 #endif /* UPB_BASE_STRING_VIEW_H_ */
76