我已经开始为 n 维向量编写一个库。
我想在这个库中支持几个设计功能：
- 内存布局是连续的。这样共享内存、通过网络发送和保存到文件只需要传递一个指针。
- 不同的维度可以支持不同的元素大小（即
[0][0]可能是1字节，[1][0]也可能是2字节）。
在绘制了某些维度向量的内存布局的一些表示之后，我意识到有两种布局结构的方法：
这是第一种方法。两种表示都是 [2][4][3] 数组的可视化。
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| index | 0:0:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| index | 1:0:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| index | 0:0:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| index | 0:1:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| index | 0:2:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| index | 0:3:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| index | 1:0:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| index | 1:1:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| index | 1:2:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| index | 1:3:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| Index | 0:0:0 |
| Element | |
---------------------------
---------------------------
| Index | 0:0:1 |
| Element | |
---------------------------
---------------------------
| Index | 0:0:2 |
| Element | |
---------------------------
---------------------------
| Index | 0:1:0 |
| Element | |
---------------------------
---------------------------
| Index | 0:1:1 |
| Element | |
---------------------------
---------------------------
| Index | 0:1:2 |
| Element | |
---------------------------
---------------------------
| Index | 0:2:0 |
| Element | |
---------------------------
---------------------------
| Index | 0:2:1 |
| Element | |
---------------------------
---------------------------
| Index | 0:2:2 |
| Element | |
---------------------------
---------------------------
| Index | 0:3:0 |
| Element | |
---------------------------
---------------------------
| Index | 0:3:1 |
| Element | |
---------------------------
---------------------------
| Index | 0:3:2 |
| Element | |
---------------------------
---------------------------
| Index | 1:0:0 |
| Element | |
---------------------------
---------------------------
| Index | 1:0:1 |
| Element | |
---------------------------
---------------------------
| Index | 1:0:2 |
| Element | |
---------------------------
---------------------------
| Index | 1:1:0 |
| Element | |
---------------------------
---------------------------
| Index | 1:1:1 |
| Element | |
---------------------------
---------------------------
| Index | 1:1:2 |
| Element | |
---------------------------
---------------------------
| Index | 1:2:0 |
| Element | |
---------------------------
---------------------------
| Index | 1:2:1 |
| Element | |
---------------------------
---------------------------
| Index | 1:2:2 |
| Element | |
---------------------------
---------------------------
| Index | 1:3:0 |
| Element | |
---------------------------
---------------------------
| Index | 1:3:1 |
| Element | |
---------------------------
---------------------------
| Index | 1:3:2 |
| Element | |
---------------------------
这里是第二种方式。
---------------------------
| index | 0:0:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| index | 0:0:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| Index | 0:0:0 |
| Element | |
---------------------------
---------------------------
| Index | 0:0:1 |
| Element | |
---------------------------
---------------------------
| Index | 0:0:2 |
| Element | |
---------------------------
---------------------------
| index | 0:1:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| Index | 0:1:0 |
| Element | |
---------------------------
---------------------------
| Index | 0:1:1 |
| Element | |
---------------------------
---------------------------
| Index | 0:1:2 |
| Element | |
---------------------------
---------------------------
| index | 0:2:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| Index | 0:2:0 |
| Element | |
---------------------------
---------------------------
| Index | 0:2:1 |
| Element | |
---------------------------
---------------------------
| Index | 0:2:2 |
| Element | |
---------------------------
---------------------------
| index | 0:3:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| Index | 0:3:0 |
| Element | |
---------------------------
---------------------------
| Index | 0:3:1 |
| Element | |
---------------------------
---------------------------
| Index | 0:3:2 |
| Element | |
---------------------------
---------------------------
| index | 1:0:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| index | 1:0:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| Index | 1:0:0 |
| Element | |
---------------------------
---------------------------
| Index | 1:0:1 |
| Element | |
---------------------------
---------------------------
| Index | 1:0:2 |
| Element | |
---------------------------
---------------------------
| index | 1:1:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| Index | 1:1:0 |
| Element | |
---------------------------
---------------------------
| Index | 1:1:1 |
| Element | |
---------------------------
---------------------------
| Index | 1:1:2 |
| Element | |
---------------------------
---------------------------
| index | 1:2:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| Index | 1:2:0 |
| Element | |
---------------------------
---------------------------
| Index | 1:2:1 |
| Element | |
---------------------------
---------------------------
| Index | 1:2:2 |
| Element | |
---------------------------
---------------------------
| index | 1:3:0 |
| elementSize | |
| elementCount | |
| expansionBoundary | |
| slotCount | |
---------------------------
---------------------------
| Index | 1:3:0 |
| Element | |
---------------------------
---------------------------
| Index | 1:3:1 |
| Element | |
---------------------------
---------------------------
| Index | 1:3:2 |
| Element | |
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选择一种布局而不是另一种布局是否有某些优点/缺点？