# LinearAllocator::GetTotalAllocated ```cpp size_t GetTotalAllocated() const override; ``` 返回自分配器创建以来的累计分配字节数。对于线性分配器,这等于当前已使用的字节数(`m_offset`)。 **参数:** 无 **返回:** 累计已分配的字节数 **复杂度:** O(1) **示例:** ```cpp #include LinearAllocator allocator(1024); size_t total1 = allocator.GetTotalAllocated(); // 0 allocator.Allocate(256); allocator.Allocate(128); size_t total2 = allocator.GetTotalAllocated(); // 384 allocator.Clear(); size_t total3 = allocator.GetTotalAllocated(); // 0(Clear 后重置) ``` ## 相关文档 - [LinearAllocator 总览](linear-allocator.md) - 返回类总览