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34 lines
706 B
Markdown
34 lines
706 B
Markdown
# LinearAllocator::GetCapacity
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```cpp
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size_t GetCapacity() const;
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```
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返回分配器的总容量，即预分配缓冲区的大小。此值在构造时确定，之后保持不变。
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**参数：** 无
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**返回：** 总容量（字节数）
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**复杂度：** O(1)
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**示例：**
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```cpp
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#include <XCEngine/Memory/LinearAllocator.h>
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LinearAllocator allocator(1024 * 1024); // 1MB
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size_t capacity = allocator.GetCapacity(); // 1048576
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allocator.Allocate(512);
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allocator.Allocate(256);
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size_t used = allocator.GetUsedSize(); // 768
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size_t remaining = allocator.GetCapacity() - allocator.GetUsedSize(); // 1047808
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```
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## 相关文档
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- [LinearAllocator 总览](linear-allocator.md) - 返回类总览
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