Files
XCEngine/docs/api/memory/allocator/free.md
ssdfasd a9f882f233 docs: 修正 API 文档准确性 (第二轮检查)
修复的问题:
- math: 修复 Quaternion::Normalize 链接错误
- containers: HashMap 迭代器示例使用不存在的 cbegin/cend,删除冗余构造函数声明
- core: RefCounted 析构函数访问级别修正 (protected)
- debug: LogLevelToString 示例返回值大小写修正
- memory: 修正 LinearAllocator::Reallocate 返回 nullptr,ProxyAllocator 统计描述,头文件路径 IAllocator.h -> Allocator.h
- resources: Texture::Create mipLevels 参数描述修正
- rhi: 修复多处链接错误,新增缺失的方法文档
- threading: TaskSystem 配置项未实现状态标注,Wait 方法空实现标注
2026-03-19 00:31:14 +08:00

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