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41 lines
888 B
Markdown
41 lines
888 B
Markdown
# IAllocator::Free
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```cpp
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virtual void Free(void* ptr) = 0;
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```
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释放之前通过 `Allocate` 分配的内存块。如果 `ptr` 为 `nullptr`，则此调用无效果。部分分配器（如 LinearAllocator）可能不支持此操作。
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**参数：**
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- `ptr` - 指向要释放内存块的指针
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**返回：** 无
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**复杂度：** O(1)（固定块释放）或 O(n)（需要搜索）
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**示例：**
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```cpp
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#include <XCEngine/Memory/Allocator.h>
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class MyAllocator : public IAllocator {
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public:
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void* Allocate(size_t size, size_t alignment = 0) override {
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return ::operator new(size);
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}
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void Free(void* ptr) override {
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if (ptr) ::operator delete(ptr);
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}
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// ... 其他方法实现
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};
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MyAllocator alloc;
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void* ptr = alloc.Allocate(512);
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alloc.Free(ptr); // 释放内存
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```
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## 相关文档
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- [IAllocator 总览](allocator.md) - 返回类总览
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