33 lines
834 B
Markdown
33 lines
834 B
Markdown
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# MemoryManager::CreateLinearAllocator
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```cpp
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std::unique_ptr<LinearAllocator> CreateLinearAllocator(size_t size);
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```
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创建并返回一个新的 LinearAllocator 实例，使用系统分配器作为底层。返回的 `unique_ptr` 管理分配器生命周期。
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**参数：**
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- `size` - 分配器缓冲区大小（字节）
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**返回：** LinearAllocator 的 unique_ptr
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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/MemoryManager.h>
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auto linear = MemoryManager::Get().CreateLinearAllocator(1024 * 1024);
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void* ptr = linear->Allocate(256);
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void* marker = linear->GetMarker();
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linear->Allocate(128);
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linear->SetMarker(marker);
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linear->Clear();
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```
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## 相关文档
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- [MemoryManager 总览](memorymanager.md) - 返回类总览
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- [LinearAllocator](../linear-allocator/linear-allocator.md) - 线性分配器
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