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Side by Side Diff: base/win/scoped_variant.h

Issue 1550493002: Switch to standard integer types in base/win/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 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 BASE_WIN_SCOPED_VARIANT_H_ 5 #ifndef BASE_WIN_SCOPED_VARIANT_H_
6 #define BASE_WIN_SCOPED_VARIANT_H_ 6 #define BASE_WIN_SCOPED_VARIANT_H_
7 7
8 #include <windows.h> 8 #include <windows.h>
9 #include <oleauto.h> 9 #include <oleauto.h>
10 #include <stdint.h>
10 11
11 #include "base/base_export.h" 12 #include "base/base_export.h"
12 #include "base/basictypes.h" 13 #include "base/macros.h"
13 14
14 namespace base { 15 namespace base {
15 namespace win { 16 namespace win {
16 17
17 // Scoped VARIANT class for automatically freeing a COM VARIANT at the 18 // Scoped VARIANT class for automatically freeing a COM VARIANT at the
18 // end of a scope. Additionally provides a few functions to make the 19 // end of a scope. Additionally provides a few functions to make the
19 // encapsulated VARIANT easier to use. 20 // encapsulated VARIANT easier to use.
20 // Instead of inheriting from VARIANT, we take the containment approach 21 // Instead of inheriting from VARIANT, we take the containment approach
21 // in order to have more control over the usage of the variant and guard 22 // in order to have more control over the usage of the variant and guard
22 // against memory leaks. 23 // against memory leaks.
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83 84
84 // Retrieves the pointer address. 85 // Retrieves the pointer address.
85 // Used to receive a VARIANT as an out argument (and take ownership). 86 // Used to receive a VARIANT as an out argument (and take ownership).
86 // The function DCHECKs on the current value being empty/null. 87 // The function DCHECKs on the current value being empty/null.
87 // Usage: GetVariant(var.receive()); 88 // Usage: GetVariant(var.receive());
88 VARIANT* Receive(); 89 VARIANT* Receive();
89 90
90 void Set(const wchar_t* str); 91 void Set(const wchar_t* str);
91 92
92 // Setters for simple types. 93 // Setters for simple types.
93 void Set(int8 i8); 94 void Set(int8_t i8);
94 void Set(uint8 ui8); 95 void Set(uint8_t ui8);
95 void Set(int16 i16); 96 void Set(int16_t i16);
96 void Set(uint16 ui16); 97 void Set(uint16_t ui16);
97 void Set(int32 i32); 98 void Set(int32_t i32);
98 void Set(uint32 ui32); 99 void Set(uint32_t ui32);
99 void Set(int64 i64); 100 void Set(int64_t i64);
100 void Set(uint64 ui64); 101 void Set(uint64_t ui64);
101 void Set(float r32); 102 void Set(float r32);
102 void Set(double r64); 103 void Set(double r64);
103 void Set(bool b); 104 void Set(bool b);
104 105
105 // Creates a copy of |var| and assigns as this instance's value. 106 // Creates a copy of |var| and assigns as this instance's value.
106 // Note that this is different from the Reset() method that's used to 107 // Note that this is different from the Reset() method that's used to
107 // free the current value and assume ownership. 108 // free the current value and assume ownership.
108 void Set(const VARIANT& var); 109 void Set(const VARIANT& var);
109 110
110 // COM object setters 111 // COM object setters
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155 // Use the Compare method instead. 156 // Use the Compare method instead.
156 bool operator==(const ScopedVariant& var) const; 157 bool operator==(const ScopedVariant& var) const;
157 bool operator!=(const ScopedVariant& var) const; 158 bool operator!=(const ScopedVariant& var) const;
158 DISALLOW_COPY_AND_ASSIGN(ScopedVariant); 159 DISALLOW_COPY_AND_ASSIGN(ScopedVariant);
159 }; 160 };
160 161
161 } // namespace win 162 } // namespace win
162 } // namespace base 163 } // namespace base
163 164
164 #endif // BASE_WIN_SCOPED_VARIANT_H_ 165 #endif // BASE_WIN_SCOPED_VARIANT_H_
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