作者查詢 / steve1012
作者 steve1012 在 PTT [ C_and_CPP ] 看板的留言(推文), 共748則
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3F推: 你想要很緊緻的話也可以加個keyword 讓他沒有padding09/07 00:15
4F→: 主要是因為cpu 一次都抓很多個byte起來 所以compiler會09/07 00:16
5F→: 加padding 細節你還是google一下有詳盡解說09/07 00:16
18F推: 把他包成一個函數 就可以假裝很簡潔啦09/06 00:37
3F推: 不要用沒維護的東西...09/04 08:06
3F推: Keyword pointer arithmetic09/03 23:29
10F推: Void ptr 通常也是1byte 不過標準沒有規定就是了09/04 01:50
11F→: 你就轉成char*就好了09/04 01:50
10F推: 不就是flag 跟mask嗎...08/30 22:46
11F→: 定值跟不能當flag的關聯是?08/30 22:47
12F推: Free 完把ptr 指到null 才是好習慣 建議先改了以後看08/21 04:47
13F→: 中間是不是有哪裡改到08/21 04:47
14F推: 然後建議你抽出有問題的片段 貼可以重現bug 的程式上08/21 04:51
15F→: 來08/21 04:51
16F→: 一開始宣告沒要馬上用的話 最好也指到null 較容易debug08/21 04:52
17F推: 話說a用不到pointer 為啥不在b裡面宣告?08/21 05:51
32F推: 好好奇啊 要是原po真的很害羞的話可以私我我幫你看08/22 04:20
33F→: 再幫你抽出有問題的地方貼上來08/22 04:28
10F推: 這不是virtual 的本意嗎08/18 02:39
25F推: Virtual function 簡化說是你用base class ptr 指向chi08/18 22:49
26F→: ld class obj並呼叫virtual method 時候會呼叫到child08/18 22:49
27F→: class 的implementation08/18 22:49
28F→: 這真的隨便google 就有圖文解說 比看推文還要好懂很多08/18 22:50
29F→: 為啥不自己上網查一下就好了...08/18 22:50
30F→: 比發文還快08/18 22:51
32F推: Override 算是好的practice08/18 23:08
36F推: 不是virtual function 不會在virtual table 裡 base cl08/19 02:19
37F→: ass pointer 怎麼知道child class 的function 在哪08/19 02:19
40F推: 聽起來沒錯08/19 08:15
7F推: 就船structure就好啦08/04 22:43
7F推: 用vector XD08/01 22:59
36F推: 要是想寫更快會想寫Python 想要效率會直接寫c++ 不知道07/12 00:53
37F→: 特別用d的purpose07/12 00:53
64F推: 跟台企沒關吧 其實很多公司都有熱門較多人用的語言 你07/12 14:38
65F→: 要跟別人合作自然會配合別人07/12 14:38