IT討論區(113) 就到4月啦!!又到轉工好時機!!
提督の決断
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C++識啲咩
Try to answer:
1. What are const int*, int const*, int * const
2. What is sizeof(A) for class A{}
3. What are some usage and pros and cons of virtual function
4. What is virtual base class
5. Give 3 different implementations of Fibonacci
1. What are const int*, int const*, int * const
2. What is sizeof(A) for class A{}
3. What are some usage and pros and cons of virtual function
4. What is virtual base class
5. Give 3 different implementations of Fibonacci
1. 頭兩個係constant pointer，後面係constant value
2. empty class所以係1 byte?
3. pros 係佢可以令到interiance嗰陣做到dynamic binding
cons我諗唔到
4. virtual base class係整啲pure virtual function，幫一舊嘢abstraction，declare derived class一啲behavior，你唔可以整呢個class 嘅instance
5. Iteration, recursion, closed form solution
2. empty class所以係1 byte?
3. pros 係佢可以令到interiance嗰陣做到dynamic binding
cons我諗唔到
4. virtual base class係整啲pure virtual function，幫一舊嘢abstraction，declare derived class一啲behavior，你唔可以整呢個class 嘅instance
5. Iteration, recursion, closed form solution
1. Please elaborate more eg tell me some scenario when there is compiler error
6. Do you have other strength eg nework?
6. Do you have other strength eg nework?
int a = 10, b = 20;
const int *p1 = &a;
int const * p2 = &a;
int * const p3 = &a;
*p1 = b; // no problem
*p2 = b; // no problem
*p3 = b; // error
p1 = &b; // error
p2 = &b; // error
p3 = &b; // no problem
Networking唔識
叫做有用過下OpenMP同埋CUDA咁囉
const int *p1 = &a;
int const * p2 = &a;
int * const p3 = &a;
*p1 = b; // no problem
*p2 = b; // no problem
*p3 = b; // error
p1 = &b; // error
p2 = &b; // error
p3 = &b; // no problem
Networking唔識
叫做有用過下OpenMP同埋CUDA咁囉
高手
C++我乜都唔識
C++我乜都唔識
留夠等睇 FG 50K
1. 你調轉左pointer to const 同const pointer
2. Ok la 要>0 具體implementation defined一般係四byte
3. 自己search下virtual function overhead
4. 你講既係abstract base class 唔係virtual base class 自己search下
5. Ok la also learn matrix method
建議唔好覺得識大部分C++ 因為首先你已經自覺唔識template 然後OOP都係非常熟
搵C++工 你可以試下搵下寫firmware既工
2. Ok la 要>0 具體implementation defined一般係四byte
3. 自己search下virtual function overhead
4. 你講既係abstract base class 唔係virtual base class 自己search下
5. Ok la also learn matrix method
建議唔好覺得識大部分C++ 因為首先你已經自覺唔識template 然後OOP都係非常熟
搵C++工 你可以試下搵下寫firmware既工
*OOP都唔係
多謝建議
CUDA做過rendering? 可以寫game
未做過rendering，淨係試過玩過下
例如用佢砌下matrix multiplication同埋simulate下啲physics問題
例如用佢砌下matrix multiplication同埋simulate下啲physics問題
第二可圈可點。
用g++試class 係1, struct 係0，應該個個compiler都唔同。
第三，不解䆁
睇inside the C++ object model，講得出vtable一定加好多分
用g++試class 係1, struct 係0，應該個個compiler都唔同。
第三，不解䆁
睇inside the C++ object model，講得出vtable一定加好多分
好多公司人工都係睇年資only唔識做既咪頂一年轉工
又加人工了利申 乜都唔識
點解會請左
半年都轉到