1 /*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #ifndef FRAMEWORKS_EX_VARIABLESPEED_JNI_MACROS_H_
18 #define FRAMEWORKS_EX_VARIABLESPEED_JNI_MACROS_H_
19
20 #include <hlogging.h>
21
min(float a,float b)22 inline float min(float a, float b) {
23 return (a < b) ? a : b;
24 }
25
max(float a,float b)26 inline float max(float a, float b) {
27 return (a > b) ? a : b;
28 }
29
30 template <class ForwardIterator>
min_element(ForwardIterator first,ForwardIterator last)31 ForwardIterator min_element(ForwardIterator first, ForwardIterator last) {
32 ForwardIterator lowest = first;
33 if (first == last) return last;
34 while (++first != last)
35 if (*first < *lowest)
36 lowest = first;
37 return lowest;
38 }
39
40 // A macro to disallow the copy constructor and operator= functions
41 // This should be used in the private: declarations for a class
42 #define DISALLOW_COPY_AND_ASSIGN(TypeName) \
43 TypeName(const TypeName&); \
44 void operator=(const TypeName&)
45
46 #define CHECK(x) { \
47 if (!(x)) { \
48 LOGE("assertion failed: " #x); \
49 LOGE("file: %s line: %d", __FILE__, __LINE__); \
50 int* frob = NULL; \
51 *frob = 5; \
52 } \
53 }
54
55 template <class Dest, class Source>
bit_cast(const Source & source)56 inline Dest bit_cast(const Source& source) {
57 // Compile time assertion: sizeof(Dest) == sizeof(Source)
58 // A compile error here means your Dest and Source have different sizes.
59 typedef char VerifySizesAreEqual [sizeof(Dest) == sizeof(Source) ? 1 : -1]; // NOLINT
60
61 Dest dest;
62 memcpy(&dest, &source, sizeof(dest));
63 return dest;
64 }
65
66 #endif // FRAMEWORKS_EX_VARIABLESPEED_JNI_MACROS_H_
67