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Q. How does free know how much to free?
A. The malloc/free 會記住配置的記憶體大小，存放在data block 前
可以參考 glibc 的 malloc.c
HexRabbit
Q : List some problems that cannot be detected via static checks ?
A : 比如 buffer overrun：如果 buffer 大小固定，但是靜態分析無法預期使用者輸入的長度，因此輸入超過長度的字串，有可能造成錯誤或攻擊
具體攻擊手法可以參考
Naetw同學相關文章
Q : Why does qtest restrict the usage free(NULL)
A : unit test 中必需考慮各種情況，好處是可以更清楚描述問題，在進行更複雜的操作 (i.e. 交換 list 中兩個節點或對象為 circular list) 更顯得重要，降低程式設計師的開發成本
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| - [ ] Todo List |
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| **Bold font** | Bold font | ||
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| ~~Strikethrough~~ | |||
| 19^th^ | 19th | ||
| H~2~O | H2O | ||
| ++Inserted text++ | Inserted text | ||
| ==Marked text== | Marked text | ||
| [link text](https:// "title") | Link | ||
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| `Code` | Code |
在筆記中貼入程式碼 | |
| ```javascript var i = 0; ``` |
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| {%youtube youtube_id %} | Externals | ||
| $L^aT_eX$ | LaTeX | ||
| :::info This is a alert area. ::: |
This is a alert area. |
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