40 lines
726 B
Markdown
40 lines
726 B
Markdown
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# PoolAllocator::GetAllocationCount
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```cpp
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size_t GetAllocationCount() const override;
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```
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返回当前已分配块的数量。计算公式：`m_totalBlocks - m_freeBlocks`。
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**参数：** 无
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**返回：** 当前已分配块的数量
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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/PoolAllocator.h>
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PoolAllocator pool(sizeof(int), 100);
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size_t count = pool.GetAllocationCount(); // 0
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void* blocks[10];
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for (int i = 0; i < 10; ++i) {
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blocks[i] = pool.Allocate();
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}
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count = pool.GetAllocationCount(); // 10
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for (int i = 0; i < 5; ++i) {
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pool.Free(blocks[i]);
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}
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count = pool.GetAllocationCount(); // 5
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```
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## 相关文档
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- [PoolAllocator 总览](pool-allocator.md) - 返回类总览
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