1 // Copyright 2012 Google LLC
2 //
3 // Redistribution and use in source and binary forms, with or without
4 // modification, are permitted provided that the following conditions are
5 // met:
6 //
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
10 // copyright notice, this list of conditions and the following disclaimer
11 // in the documentation and/or other materials provided with the
12 // distribution.
13 // * Neither the name of Google LLC nor the names of its
14 // contributors may be used to endorse or promote products derived from
15 // this software without specific prior written permission.
16 //
17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29 // Android doesn't provide wcscasecmp(), so provide an alternative here.
30 //
31 // Note that this header is not needed when Breakpad is compiled against
32 // a recent version of Googletest. It shall be considered for removal once
33 // src/testing/ is updated to an appropriate revision in the future.
34
35 #ifndef GOOGLEBREAKPAD_COMMON_ANDROID_INCLUDE_WCHAR_H
36 #define GOOGLEBREAKPAD_COMMON_ANDROID_INCLUDE_WCHAR_H
37
38 #include_next <wchar.h>
39
40 #if !defined(__aarch64__) && !defined(__x86_64__) && \
41 !(defined(__mips__) && _MIPS_SIM == _ABI64)
42
43 // This needs to be in an extern "C" namespace, or Googletest will not
44 // compile against it.
45 #ifdef __cplusplus
46 extern "C" {
47 #endif // __cplusplus
48
wcstolower(wchar_t ch)49 static wchar_t inline wcstolower(wchar_t ch) {
50 if (ch >= L'a' && ch <= L'A')
51 ch -= L'a' - L'A';
52 return ch;
53 }
54
wcscasecmp(const wchar_t * s1,const wchar_t * s2)55 static int inline wcscasecmp(const wchar_t* s1, const wchar_t* s2) {
56 for (;;) {
57 wchar_t c1 = wcstolower(*s1);
58 wchar_t c2 = wcstolower(*s2);
59 if (c1 < c2)
60 return -1;
61 if (c1 > c2)
62 return 1;
63 if (c1 == L'0')
64 return 0;
65 s1++;
66 s2++;
67 }
68 }
69
70 #ifdef __cplusplus
71 } // extern "C"
72 #endif // __cplusplus
73 #endif
74
75 #endif // GOOGLEBREAKPAD_COMMON_ANDROID_INCLUDE_WCHAR_H
76