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Side by Side Diff: courgette/region.h

Issue 1543643002: Switch to standard integer types in courgette/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: fix Created 5 years ago
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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef COURGETTE_REGION_H_ 5 #ifndef COURGETTE_REGION_H_
6 #define COURGETTE_REGION_H_ 6 #define COURGETTE_REGION_H_
7 7
8 #include <stddef.h>
9 #include <stdint.h>
10
8 #include <string> 11 #include <string>
9 12
10 #include "base/basictypes.h"
11 13
12 namespace courgette { 14 namespace courgette {
13 15
14 // A Region is a descriptor for a region of memory. It has a start address and 16 // A Region is a descriptor for a region of memory. It has a start address and
15 // a length measured in bytes. The Region object does not own the memory. 17 // a length measured in bytes. The Region object does not own the memory.
16 // 18 //
17 class Region { 19 class Region {
18 public: 20 public:
19 // Default constructor: and empty region. 21 // Default constructor: and empty region.
20 Region() : start_(NULL), length_(0) {} 22 Region() : start_(NULL), length_(0) {}
21 23
22 // Usual constructor for regions given a |start| address and |length|. 24 // Usual constructor for regions given a |start| address and |length|.
23 Region(const void* start, size_t length) 25 Region(const void* start, size_t length)
24 : start_(static_cast<const uint8*>(start)), 26 : start_(static_cast<const uint8_t*>(start)), length_(length) {}
25 length_(length) {
26 }
27 27
28 // String constructor. Region is owned by the string, so the string should 28 // String constructor. Region is owned by the string, so the string should
29 // have a lifetime greater than the region. 29 // have a lifetime greater than the region.
30 explicit Region(const std::string& string) 30 explicit Region(const std::string& string)
31 : start_(reinterpret_cast<const uint8*>(string.c_str())), 31 : start_(reinterpret_cast<const uint8_t*>(string.c_str())),
32 length_(string.length()) { 32 length_(string.length()) {}
33 }
34 33
35 // Copy constructor. 34 // Copy constructor.
36 Region(const Region& other) : start_(other.start_), length_(other.length_) {} 35 Region(const Region& other) : start_(other.start_), length_(other.length_) {}
37 36
38 // Assignment 'operator' makes |this| region the same as |other|. 37 // Assignment 'operator' makes |this| region the same as |other|.
39 Region& assign(const Region& other) { 38 Region& assign(const Region& other) {
40 this->start_ = other.start_; 39 this->start_ = other.start_;
41 this->length_ = other.length_; 40 this->length_ = other.length_;
42 return *this; 41 return *this;
43 } 42 }
44 43
45 // Returns the starting address of the region. 44 // Returns the starting address of the region.
46 const uint8* start() const { return start_; } 45 const uint8_t* start() const { return start_; }
47 46
48 // Returns the length of the region. 47 // Returns the length of the region.
49 size_t length() const { return length_; } 48 size_t length() const { return length_; }
50 49
51 // Returns the address after the last byte of the region. 50 // Returns the address after the last byte of the region.
52 const uint8* end() const { return start_ + length_; } 51 const uint8_t* end() const { return start_ + length_; }
53 52
54 private: 53 private:
55 const uint8* start_; 54 const uint8_t* start_;
56 size_t length_; 55 size_t length_;
57 56
58 void operator=(const Region&); // Disallow assignment operator. 57 void operator=(const Region&); // Disallow assignment operator.
59 }; 58 };
60 59
61 } // namespace 60 } // namespace
62 #endif // COURGETTE_REGION_H_ 61 #endif // COURGETTE_REGION_H_
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