other-licenses/7zstub/src/Common/DynamicBuffer.h@6474c204b198
other-licenses/7zstub/src/Common/DynamicBuffer.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 // Common/DynamicBuffer.h
3 #ifndef __COMMON_DYNAMICBUFFER_H
4 #define __COMMON_DYNAMICBUFFER_H
6 #include "Buffer.h"
8 template <class T> class CDynamicBuffer: public CBuffer<T>
9 {
10 void GrowLength(size_t size)
11 {
12 size_t delta;
13 if (this->_capacity > 64)
14 delta = this->_capacity / 4;
15 else if (this->_capacity > 8)
16 delta = 16;
17 else
18 delta = 4;
19 delta = MyMax(delta, size);
20 SetCapacity(this->_capacity + delta);
21 }
22 public:
23 CDynamicBuffer(): CBuffer<T>() {};
24 CDynamicBuffer(const CDynamicBuffer &buffer): CBuffer<T>(buffer) {};
25 CDynamicBuffer(size_t size): CBuffer<T>(size) {};
26 CDynamicBuffer& operator=(const CDynamicBuffer &buffer)
27 {
28 this->Free();
29 if(buffer._capacity > 0)
30 {
31 SetCapacity(buffer._capacity);
32 memmove(this->_items, buffer._items, buffer._capacity * sizeof(T));
33 }
34 return *this;
35 }
36 void EnsureCapacity(size_t capacity)
37 {
38 if (this->_capacity < capacity)
39 GrowLength(capacity - this->_capacity);
40 }
41 };
43 typedef CDynamicBuffer<char> CCharDynamicBuffer;
44 typedef CDynamicBuffer<wchar_t> CWCharDynamicBuffer;
45 typedef CDynamicBuffer<unsigned char> CByteDynamicBuffer;
47 #endif
